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anonymous
 one year ago
If (9x − 4)(9x + 4) = ax2 − b, what is the value of a?
The value of a is _____________.
anonymous
 one year ago
If (9x − 4)(9x + 4) = ax2 − b, what is the value of a? The value of a is _____________.

This Question is Closed

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1hint: (xy)*(x+y) = x^2  y^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i stoll dont get it im lost as to how u solve these

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1has your teacher covered the difference of squares rule in any of the lessons?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im taking an online course so the only explanation for problems we have are written down lessons and it hard for me to learn tht way

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1read this article and tell me if it helps or not http://www.purplemath.com/modules/specfact.htm

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0not really but if u exokain to me i should pick up quickly

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1have you learned of the FOIL rule at all?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so you will FOIL out (9x4)*(9x+4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0u multiply the first outside then inner then last

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what do you get when you FOIL ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well wen i did the first terms i got 81 wich feels wrong to me

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1it's close, it should be 81x^2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1notice how ax^2 and 81x^2 match up

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0o ok i know it was x^2 but i was unsure about the 81 part

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0my bad my mom called me but b1x^2+36x36x+16?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you mean 81x^2 + 36x  36x + 16 right?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what happens with the 36x and the 36x ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1they combine to what?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cancell out of the equation leaving u with81x^2+16

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1oh my bad, the +16 should be 16

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1but yes they cancel

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you should get 81x^2  16

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0o yea becuse its a negative four time positive 4

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1compare ax^2  b with 81x^2  16

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can u help with more?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1sure, one more

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Choose the correct simplification of 8x2(4x + 2x2 − 1).

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1when you distributed, what did you get?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0WHEN I DISTRIBUTE WAT DO I DO WITH THE ^2 THATS ON THE 8

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you basically multiply 8x^2 by each term inside

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438821206787:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438821231018:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0FIRST IS 32X^3 THEN 16X^4 THEN 8X^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0BUT U HAVE TO PUT IT IN STANDARD FORM RIGHT?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1good dw:1438821424219:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1then yeah, write the terms where the largest exponent comes first, then the next largest and so on

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OK I GOT THE ANSWER THANK YOU CAN U HELP WITH ONE MORE ITS A QUICK ONE ITS JUST CONFUSING

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Choose the polynomial written in standard form. xy2 + 4x4y + 10x2 x4y2 + 4x3y + 10x x4y2 + 4x3y5 + 10x2 x6y2 + 4x3y8 + 10x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0MY BAD LET ME WRITE THEM CORRECTLY

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0XY^2+4X^4Y+10X^2 X^4Y^2+4X^3Y+10X X^4Y^2+4X^3Y^5+10X^2 X^6Y^2+4X^3Y^8+10X

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I KNOW THEY NEED TO BE IN ORDER BUT NONE OF THEM ARE FROM HIGHEST EXPONENT TO LOWEST

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1whenever you have mixed variables like this, you add the exponents for each term then see if those sums are in descending order

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1For example, look at choice D first term is x^6y^2, the sum of the exponents is 6+2 = 8 second term is 4x^3y^8, the sum of the exponents is 3+8 = 11 the sum goes from 8 to 11, which is NOT decreasing, so D is out

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes the sums of the exponents for choice B are decreasing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OK THANK YOU SO MUCH MAN
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