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anonymous
 one year ago
MEDAL AND FAN :D
Part A: The area of a square is (9x2 − 12x + 4) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points)
Part B: The area of a rectangle is (25x2 − 16y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)
anonymous
 one year ago
MEDAL AND FAN :D Part A: The area of a square is (9x2 − 12x + 4) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points) Part B: The area of a rectangle is (25x2 − 16y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.19x^2  12 x + 4 is a perfect square can you tell me what are the square roots of 9x^2 and 4?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Idk, 4 square root is 2 right?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1yes what about 9x^2?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1u need square root of 9 and square root of x^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.03, idk how to get the square root of x^2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1its easy x^2 = x * x so by definition square root of x^2 = x so square root of 9x^2 = 3x

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1we need 2 for square root of 4 because we have 12x in the middle of the expression square root of 9x^2  12 x + 4 = (3x  2) x^2  12 x + 4 = (3x  2)^2 = area of the square each side of square has length 3x  2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1thats 9x^2 on last line not x^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So what would that get for part A?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Part B is a rectangle with different length and width

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 we finished part A

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Wait, what was the answer for part a? x^2  12 x + 4 = (3x  2)^2 ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1yea those are the factors and side length = 3x  2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sweet, now what would part b be? how would we find it?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.125x^2  16y^2 is the Difference of 2 squares this factors to 2 binomials which are the same except one has + and one has  sign first what are the sqqaure roots of 25x^2 and 16y^2?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1first square root of 25 = 5 and sqrt of x^2 = x giving 5x so can you figure out square root of 16y^2 in a similar way?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1nearly right NOT 4x^2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you have the number paret right  5 and 4 but what are sqrts of x^2 and y^2?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no x^2 = x*x  i wan the square root of x^2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1check back to earlier posts

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1yes the square root of x^2 = x because x*x = x^2 similarly sqrt y^2 = y

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so sqrt 25x^2 = 5x and sqrt 16y^2 = ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1why 2x  there's no x in 16y^2 and sqrt 16 is not 2  its 4

welshfella
 one year ago
Best ResponseYou've already chosen the best response.14 is aqrt 16 yes but i need sqrt of 16y^2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 u r driving me crazy!!  how can it be x when theres no x in 16y^2  what letter is in 16y^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Square root of ^2 is x? waaait im wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0there is none, so why wouldn't it just be 4??

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so going back 25x^2  16y^2 = ( 5x + 4y)(5x  4y) note there's + in one bracket and  in the other

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1those are the factors and the dimensions of the rectangle one dimension is 5x+4y and the other ix 5x4y.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So that's the answer, 5x+4y for each side?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no 5x+4y for one side and 5x4y for the other

welshfella
 one year ago
Best ResponseYou've already chosen the best response.15x+4y will be the length and 5x4y will be the width
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