Question

valor de la x y la comprobación

(2x-3)(x-1)-(2x+1)(x-4)=7
​

Answer 1

Explicación paso a paso:

(2x-3)(x-1)-(2x+1)(x-4)=7

2x^2-3x-2x+3-(2x^2-8x+x-4)=7

2x^2-2x^2 -5x+7x+3+4=7

2x+7=7

2x=7-7

3x=0

x=0/3

x=0

Comprobación

(2x-3)(x-1)-(2x+1)(x-4)=7

(2(0)-3)(0-1)-(2(0)+1)(0-4)=7

(-3)(-1)-(1)(-4)=7

3+4=7

7=7