Question

2x²-(x-2)(x+5)=7 (x+3)​

Answer 1

Respuesta:

espero t sirva, suerte!!!<3

Explicación paso a paso:

2x²-(x-2)(x+5)=7 (x+3)​

2x² - (x² + 5x - 2x - 10) = 7x + 21

2x² - (x² + 3x - 10) = 7x + 21

2x² - x² - 3x + 10 = 7x + 21

x² - 3x + 10 = 7x + 21

x² - 3x + 10 - 7x - 21 = 0

2 x-10x 11=0

x² + x - 11x - 1 = 0

x(x + 1) - 11(x + 1) = 0

(x + 1)(x - 11) = 0

x+1=0

x-11=0

x = - 1

x = 11

x1 = - 1, x2= 11