Question

(x+5)ao quadrado igual a 0

Answer 1

 x^{2} +5x+5x +25 =0 x^{2} + 10x +25=0 
Δ= (b)²-4(a)(c)
Δ= (10)²-4(1)(25)
Δ= 100-100= 0
x = -(b)⁺₋√Δ ÷ 2(a)
x = -10÷2 = -5
x = 0