Question

write (x+7)^2 in expanded fourm

Answer 1

let's go step by step

Answer 2

kay

Answer 3

(x+7)^2 = (x+7)*(x+7)
= x*x + x*7 + 7*x + 7*7
= x^2 + 7x + 7x + 49
= x^2 + 14x + 49

Answer 4

understand?

Answer 5

i think so

Answer 6

:)

Answer 7

in general:
\((a+b)^2 = a^2 + 2ab + b^2\)

Answer 8

got,ot

Answer 9

and \((a-b)^2 = a^2 - 2ab + b^2\)

Answer 10

*it