Question

(-2х+7)(-2х-1)=0 Решите уравнение

Answer 1

Ответ: 3,5; -0,5

Пошаговое объяснение:

Answer 2

Ответ:

Пошаговое объяснение:

(-2x+7)(-2x-1)=0

4x^2-14x+2x-7=0

4x^2-12x-7=0

D=144-4*4*(-7)=256

x1=(12+16)/8=28/8=7/2=3,5

x2=(12-16)/8=-4/8=-1/2=-0.5

Answer 3

To solve the equation (-2x + 7)(-2x - 1) = 0, we need to find the values of x that make the equation true.

The product of two factors is equal to zero if at least one of the factors is equal to zero. So we set each factor equal to zero and solve for x:

1. -2x + 7 = 0 Add 2x to both sides: 7 = 2x Divide by 2: x = 7/2 or x = 3.5

2. -2x - 1 = 0 Add 1 to both sides: -1 = 2x Divide by 2: x = -1/2 or x = -0.5

So, the solutions to the equation are x = 3.5 and x = -0.5.