Question

a)8-x-(x^2+x+1)=4-x^2
b)3-(x+16)=3x-(x+6)
c)(x-3)^2+4=(x+1)(x-6) rezolvati ecuatiile

Answer 1

c) (x-3)^2+4=(x+1)(x-6)
x^2-6x+9+4=x^2-6x+x-6
x^2-6x-x^2+6x-x=-6-9-4
-x=-19
x=19

Answer 2

a)x=12  b)x=10 c)x=20