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`