Question

If B = 2s + s² and A = 3 - 4s², find an expression that equals B + 3A in
standard form

Answer 1

- 11s² + 2s + 9

Explanation:

B = 2s + s²

A = 3 - 4s²

then

2s + s² + 3(3 - 4s²)

=2s + s²+ 9 - 12s²

= - 11s² + 2s + 9