Question

2x(3 + 8x) - (4x - 3)(4x + 3) ≥ 1, 5x

Answer 1

Ответ:

6×+16x²- (16х²-9) ≥1,5х

6× +16х²-16x² + 9 ≥ 1,5х

6x + 9 = 1,5х

6х-1,5х≥-9

4,5х≥-9

x≥-2