Question

Realiza las operaciones y expresa la ecuación en forma ax*+ bx +c = 0

(* = al cuadrado)

a) 4 (x-3) (x+6) = 0
b) (2x-9) (3x+1) = 0
c) (x-6) (5x-10) = 0
d) 7 (x-5) (5x-10) = 0
e) (5-x) (-7x+2) = 0

Answer 1

a ) 4(x-3)(x+6) = 0
4(x²+3x-18) = 0
4x² + 12x - 72 = 0

b ) (2x-9)(3x+1) = 0
6x² - 25x - 9 = 0

c) (x-6)(5x-10) = 0
5x² - 40x + 60 = 0

d) 7(x-5)(5x-10) = 0
7(5x²-35x+50) = 0
35x² - 245x + 350 = 0