Question

Help me solve? 1. Multiply and simplify. 1. (b + 2)(b + 2) 2. (x + 3)(x – 3)

Answer 1

1. b^2+4b+4
2. x^2-9
=)

Answer 2

1. (b × b) + (2 × b) + (2 × b) + (2 × 2)
= b² + 2b + 2b + 4
= b² + 4b + 4

2. (x × x) + (x(–3)) + (3 × x) + (3(–3))
= x² + (–3x) + 3x + (–9)
= x² — 3x + 3x — 9
= x² — 9