Question

(2x - 2)•(2x + 7) - x(4x + 1) - 3,5 = 0​

Answer 1

(2x - 2)•(2x + 7) - x(4x + 1) - 3,5 = 0​

4x²+14x-4x-14-4x²-x-3,5=0

9x= 17,5

x=17,5:9

х≈ 1,9(4) ≈1,94