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Algebraic Expressions — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsAlgebraic Expressions2 Marks
Question
Find the products:
$\Big(\frac{-3}{4}\text{ab}^3\Big)\times \Big(\frac{-2}{3}\text{a}^2\text{b}^4\Big)$
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Answer

$\Big(\frac{-3}{4}\text{ab}^3\Big)\times \Big(\frac{-2}{3}\text{a}^2\text{b}^4\Big)$
$=\frac{-3}{4}\times \frac{-2}{3}\text{a}\times \text{a}^2\times \text{b}^3\times\text{b}^4$
$=\frac{1}{2}\text{a}^{1+2}\times\text{b}^{3+4}$
$=\frac{1}{2}\text{a}^3\text{b}^7$

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