Question

1- Resolvendo a equação ( x - 3)² = 9 - x .( x - 5), obtemos:

Answer 1

x^2-6x+9=9-x.(x-5)
x^2-6x+9=9-x^2+5x
x^2-6x=-x^2+5x
x^2-6x+x^2-5x=0
2x^2-6x-5x=0
2x^2-11x=0
x.(2x-11)=0
x=0
2x-11=0
x=0
x=11/2
x1= 0
x2= 11/2

Resposta: x1= 0;x2= 11/2