Question

A=-1b=5 e c =0
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Answer 1

A = -1 B = 5 C = 0

Δ = B² - 4.A.C

Δ = 5² - 4.(-1).0

Δ = 25 + 0

Δ = 25

X = -B +- √Δ / 2.A

X = -5 +- √25 / 2.(-1)

X = -5 +- 5 / -2

X| = -5 + 5 / -2

X| = 0 / -2

X| = 0

X|| = -5 - 5 / -2

X|| = -10 / -2

X|| = 5