Question

Expand the squared binomial.(x + 4)2

Answer 1

x2+8x+16

Answer 2

\[(x+a)^2 \implies x^2+2ax+a^2\]

Answer 3

I should add \[(x+a)^2 = (x+a)(x+a) \implies x^2+2ax+a^2\]

Answer 4

he left lol