Question

ecuaciones segundo grado, necesito responder:


x(x+3)=5x+3

x^2-(7x + 6) = x + 59

x( X-1) - 5 (X-2) = 2

Answer 1

x(x+3)=5x+3
x²+3x-5x-3=0
x²-2x-3=0
(x-3)(x+1)=0

x-3=0
x=3
x+1=0
x=-1

x^2-(7x + 6) = x + 59
x²-7x-6-x-59=0
x²-8x-65=0
(x-13)(x+5)=0
x-13=0
x=13
x+5=0
x=-5

x( X-1) - 5 (X-2) = 2
x²-x-5x+10-2=0
x²-6x+8=0
(x-4)(x-2)=0
x-4=0
x=4
x-2=0
x=2