Question

(х+2)(2х-7)=0 решить уравнение

Answer 1

Ответ:

Объяснение:

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

2x^-3x-14=0

D=b^2-4ac=9+112=121

x1=-b+кореньD/2a=-3+11/4=2

x2=-b-кореньD/2a=-3-11/4=-14/4=-3,5

x1=2 x2=-3,5

Answer 2

To solve the equation $(x+2)(2x-7)=0$, you can use the zero-product property, which states that if the product of two factors is equal to zero, then at least one of the factors must be equal to zero. So, to find the solutions for $x$, set each factor to zero and solve for $x$:

1. Set $x + 2 = 0$ and solve for $x$: $x + 2 = 0$ $x = -2$

2. Set $2x - 7 = 0$ and solve for $x$: $2x - 7 = 0$ $2x = 7$ $x = \frac{7}{2}$

The solutions to the equation are $x = -2$ and $x = \frac{7}{2}$.