Question

resolva a equação:

-X^2+49=0

Answer 1

- x² + 49 = 0

- x² = - 49 ( -1 )

x² = 49

x = + -√49

x = + -7

Answer 2

Olá!

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Resolução,

$\mathsf{- x^2 + 49 = 0~~~~~~\cdot (- 1)}$

$\mathsf{x^2 - 49 = 0}$

$\mathsf{x^2 = 49}$

$\boxed{\mathsf{x = \pm 7}}$
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Abraços!