Question

ayudaaa.es urgenteeee

Answer 1

d) 8+x(x-1)=7(x-1)
8+x²-x=7x-7
X²-8x+15=0
(x-3) (x-5) =0
X=3
X=5

e)(x+1)²=2(x+25)
X²+2x+1=2x+50
X²+2x-2x+1-50=0
X²-49=0
X = raíz (49)
X= 7