Question

1. Multiply and simplify.
a) (b + 2)(b + 2)
b) (x + 3)(x – 3)

Answer 1

b^2+2b+2b+4
=b^2 + 4b +4

x^2+3x -3x-9
=x^2 - 9

Answer 2

\[ a. (b+2)^{2}\]
\[b. x ^{2} - 9\]