Question

$x = - 16 + - \sqrt{16 {}^{2} } - 4 \times 16 \times ( - 32)$

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Answer 1

x = -16 ±√(16² -4.16.(-32)

x = -16 ±√(16² -4.16.16.(-2))

x = -16 ±√( 16² +8.16²)

x = -16 ±√(9.16²)

x = -16 ±√9.√16²

x = -16 ±3.16

x = -16 ±48

x' = -16 -48

x' = -64

x'' = -16 +48

x'' = 32

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