Question

me ayudan con procedimiento plis
A) x2 - 3 = 2x
B) x2 -1 = 0
c) –x2 -2x= 0
D) 7x2 = 0

Answer 1

x² - 3 = 2x

x² - 2x - 3 = 0

x           -3

x          +1

-3x + x = -2x

(x - 3)(x +1) = 0

x - 3 = 0            x + 1  = 0

x  = 3                 x = -1

x² - 1 = 0

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

x + 1 = 0         x - 1 = 0

x  = -1                x = 1

CS = (-1; 1)

Eternamente axllxa