Solve for z: -42z^2 = 14z

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Bihire Boris asked Jun 6, 2023

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Solve for z: -42z^2 = 14z

Mathematics
high-school

Bihire Boris asked Jun 6, 2023

by Bihire Boris

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9 votes

Answer:

- (844)/(29) z

Explanation:

I hope to help

Matt Goo answered Jun 6, 2023

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19 votes

$\\ \rm\Rrightarrow -42z^2=14z$

$\\ \rm\Rrightarrow 42z^2=-14z$

$\\ \rm\Rrightarrow 3z^2=-z$

$\\ \rm\Rrightarrow 3z=-1$

$\\ \rm\Rrightarrow z=-1/3$

Another root is 0

Lachlan Wetherall answered Jun 10, 2023

by Lachlan Wetherall

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