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Algebraic Expressions, Identities and Factorisation — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSAlgebraic Expressions, Identities and Factorisation2 Marks
Question
Add: $9ax + 3by - cz, -5by + ax + 3cz$
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Answer

We have, $(9ax + 3by - cz) + (-5by + ax + 3cz) $
$= 9ax + 3by - cz - 5by + ax + 3cz$
$ = (9ax + ax) + (3by - 5by) + (-cz + 3cz) $
$= 10ax - 2by + 2cz$

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