Question

Упростите вырожение.
А) 6х(5х-24)-4(3-2х)
Б)2у(11у-9)+0,5(4у-3)(4у+3)

Answer 1

Ответ:

А)

$6x(5x - 24) - 4(3 - 2x) = 30 {x}^{2} - 144x - 12 + 8x = 30 {x}^{2} - 136x - 12$

Б)

$2y(11y - 9) + 0.5(4y - 3)(4y + 3) = 22 {y}^{2} - 18y + 0.5(16 {y}^{2} - 9) = 22 {y}^{2} - 18y + 8 {y}^{2} - 4.5 = 30 {y}^{2} - 18y - 4.5$