Question

(2+ a-a square)-(6-3a+4a square)-(3+5a+a square)​

Answer 1

Step-by-step explanation:

$(2 + a - {a}^{2} ) - (6 - 3a + 4a ^{2} ) - (3 + 5a - {a}^{2} ) \\ = 2 + a - {a}^{2} - 6 + 3a - 4a {}^{2} - 3 - 5a + {a}^{2} \\ = - 4 {a}^{2} - a - 7 \\ = - (4 {a}^{2} + a + 7)$