Question

qual eo valor do discriminante da equacao -2x2+8x=0

Answer 1

Olá!

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Resolução,

$\mathsf{-2x^2 + 8x = 0}$

$\mathsf{\Delta = b^2 - 4ac}$

$\mathsf{\Delta = 64 - 4\cdot (- 2)\cdot 0}$

$\boxed{\mathsf{\Delta = 64}}$
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Abraços!