Question

x2+18x+17=0 com o coeficiente o delta e a formula de bhaskara por favor me ajudem

Answer 1

∆= b^2 - 4ac
∆= 18^2 - 4. 1. 17
∆= 324 - 68
∆ = 256

x = -b +/- √∆ / 2a
x = -18 +/- 16 /2
x' = -18 + 16/2 = -2/2
x' = -1

x" = -18 -16/2 = 34/2
x" = 17