Question

Multiply. Try to recognize the type of product before multiplying
(4n+7)(4n-7)

Answer 1

This is of the form (a+b)(a-b)

(a+b)(a-b)=a^2-b^2

Answer 2

i dont understand

Answer 3

Ok don't use that
Multiply each terms

4n(4n-7)+7(4n-7)

Answer 4

so it would b 16n what do i do with the 7 sorry math is very hard for me

Answer 5

4n(4n-7) + 7(4n-7)
16n-7*4n+7*4n-7*7

Answer 6

so now do i combine like terms

Answer 7

Sorry its actually
16n^2 (4n*4n=16n^2)

yeah now combine like terms

check this too ,this is how we got it