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Rkb<3NH
Group Title
The product of (a − b)(a − b) is a^2 − b^2.
A: Sometimes
B: Always
C: Never
*is it a?
 2 years ago
 2 years ago
Rkb<3NH Group Title
The product of (a − b)(a − b) is a^2 − b^2. A: Sometimes B: Always C: Never *is it a?
 2 years ago
 2 years ago

This Question is Closed

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
I think it is B because it would end up being a^2abba+b^2 Unless there is a zero of course so then it could be A
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.0
The product of (ab)(ab) is a^22ab+b^2 now what conclusion do you think.
 2 years ago

helpingtutors Group TitleBest ResponseYou've already chosen the best response.1
so its never hence C
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
it cant be b because i choose it and i got it wrong, but i stuck between a and c
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
Yes C sorry I got the letter mixed up
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
okay well thank you and can you help me with 1 more?
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
The answer is never
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
Find the two products below. Compare and contrast, in complete sentences, the similarities and differences of the two. (x + 4)(x − 4) and (x + 4)(x + 4)
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
the first would play out to x^24x+4x16 leaving you with x^216 The second would become x^2+4x+4x+14 leaving you with x^2+8x+14 See the difference?
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
So the second is +16 not +14
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
Do you understand how to distribute those types of problems?
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
no im confused?
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
dw:1344899884673:dw
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
the first x multiplies to each term in the second set of parenthesis. Then the first 4 multiplies to each term in the second set of parenthesis. Add all the terms together and you are good to go :)
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
ohh okay! i get it
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
(x + 4)(x + 4) x^2 + 4 + 4 + 16 this is what i get for the second equation
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
Yes but remember to carry x along. The second and third terms you have just 4. But the 4 multiplies with x making them each 4x So x^2+4x+4x+16
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
You will be expected to combine like terms as well. So go ahead and add the 4xs together giving you 8x making your final result for that problem x^2+8x+16
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
oh okay can you help me out with the similarities and differences of the two equations?
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
You can see from our calculations that it is the minus sign that causes the major differences. It turns positive 16 into negative 16 and instead of creating 8x with the 4xs, the 4xs end up canceling each other out because 11=0 so 4x4x=0 as well.
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
Notice though that both problems do yield an x^2 and a 16(just a negative 16 for one of them)
 2 years ago

Rkb<3NH Group TitleBest ResponseYou've already chosen the best response.0
oh yea thats true well thank you soo much, you have been a great help!(:
 2 years ago

MathBlonde Group TitleBest ResponseYou've already chosen the best response.1
No problem :) good luck!
 2 years ago
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