Question

Cual es la forma mas sencilla de hacerla ×2-3×+28=0

Answer 1

x^2- 3x + 28 = 0
x -7
x +4

-7x+4x = - 3x

(x-7)(x+4) = 0

x -7 = 0 x+4 = 0
x = 7 x = -4

CS = (-4; 7)