Question

Resolva esta equação do 2ºgrau (x+5)² = x² + 12x + 1

Answer 1

x² + 25 = x² + 12x + 1
24 = 12 x
2 = x

x² - x²
25-1
24 / 12 

Answer 2

(x+5)^2=x^2+12x+1
x^2+2.x.5+5^2=x^2+12x+1
x^2-x^2+10x-12x+25-1
-2x+24=0
delta=b^2-4ac
delta=(-2)^2-4.0.24
delta=4-0
delta=4
x=-b-/+ raiz de delta/2a
x=-(-2)-2/2.0
x=2-2/0
x=0/0
x=0
x=-(-2)+2/2.0
x=2+2/0
x=4/0
x=0