Question

упростить выражение 3a(a-2)-(5a-1)(a+1)

Answer 1

3*а2-6*а-5*а2-5*а+а+1 = -2*а2-10*а+1

Answer 2

$3 {a}^{2} - 6a - 5 {a}^{2} - 5a + a + 1 = - 2 {a}^{2} - 10a + 1$