Question

Simplify 3a^2+2(a+2)-3a(2a+1)​

Answer 1

Answer:

$3 {a}^2 + 2a + 4 - 6 {a}^2 - 3a \\ = - 3 {a}^2 - a + 4 \\ = - 3 {a}^2 - 4a + 3a + 4 \\ = - a(3a + 4) + 1(3a + 4) \\ = (3a + 4)(1 - a)$