Question

(3x + x2)2-x2 (x+5)(x + 5)+2x(8 – 3x2)
пишите плиз​

Answer 1

(3x + x ^ 2) ^ 2 - x ^ 2(x - 5) (x + 5) + 2x(8 - 3x ^ 2) = 9x ^ 2 + 6х ^ 3 + x ^ 4 - x ^ 2(x ^ 2- 25) + 16x - 6х ^ 3 = 9x ^ 2 + 6х ^ 3 + x ^ 4 - x ^ 4 + 25x ^ 2 + 16x - 6х ^ 3 = 9x ^ 2 + 25x ^ 2 + 16x = 34x ^ 2 + 16x = 2х(17х + 8).