x^2 - 2x - 7 = 5 - 3x

Question

x^2 - 2x - 7 = 5 - 3x

Answer 1

x^2-2x-7=5-3x

x^2+x-12=0

D=1+48=49

x1=-1+7/2*1=3

x2=-1-7/2=-4.

Answer 2

x^2-2x-7=5-3x

x^2+x-12=0

D=1+2*7*4=49

x= -1+7/2*1=3

x= -1-7/2= -4.