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Simplify: −z3+5k6−(−z3+10k6)

1 Answer

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Distributing the minus inside the bracket you get:

-z3+5k6 + z3-10k6, rearranging:

z3-z3 + 5k6-10k6 = -5k6.

(Assuming z3 = z^3 etc).
User Michael Hoeller
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