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Algebraic Expressions — Maths STD 6 — Question

Maharashtra BoardEnglish MediumSTD 6MathsAlgebraic Expressions2 Marks
Question
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$2+x-x^2+6 x^3,-6-2 x+4 x^2-3 x^3, 2+x^2, 3-x^3+4 x-2 x^2$
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Answer

$2+x-x^2+6 x^3,-6-2 x+4 x^2-3 x^3, 2+x^2, 3-x^3+4 x-2 x^2$
$=2+x-x^2+6 x^3+(-6)-2 x+4 x^2-3 x^3+2+x^2+3-x^3+4 x-2 x^2$
$=(2-6+2+3)+(x-2 x+4 x)-\left(x^2-4 x^2-x^2+2 x^2\right)+\left(6 x^3-3 x^3-x^3\right)$
$=1+3 x+2 x^2+2 x^3$

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