Question

forma reduzida
a- x2-9x=3x2-10
b-5x2+7x=2x+1
c-(x-4)2-(x-2)=10
d-(x+4).(x_1)=x2=5(x-1)

Answer 1

a) x2-3x2-9x+10=0
-2x2-9x+10
b) 5x2+7x-2x-1=0
5x2+5x-1=0
c) 2x-8-x+2-10=0
x-16=0
x=16