Question

the factors of the following polynomial are given below.choose the right factors that correspond to each given polynomial and write your answer on your answer sheet​​

Answer 1

#1

$\\ \ast\rm\longmapsto (x-9)(x+9)$

$\\ \ast\rm\longmapsto x^2-9^2$

$\\ \ast\rm\longmapsto x^2-81$

#2

$\\ \ast\rm\longmapsto (2x-7)(2x+7)$

$\\ \ast\rm\longmapsto 2x^2-7^2$

$\\ \ast\rm\longmapsto 4x^2-49$

#3

$\\ \ast\rm\longmapsto (4x-9y)(4x+9y)$

$\\ \ast\rm\longmapsto 4x^2-9y^2$

$\\ \ast\rm\longmapsto 16x^2-81y^2$

#4

$\\ \ast\rm\longmapsto (5x-1)(5x+1)$

$\\ \ast\rm\longmapsto 5x^2-1^2$

$\\ \ast\rm\longmapsto 25x^2-1$

#5

$\\ \ast\rm\longmapsto (9x-20y^2)(9x+20y^2)$

$\\ \ast\rm\longmapsto 9x^2-(20y^2)^2$

$\\ \ast\rm\longmapsto 81x^2-400y^2$