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Algebraic Expressions and Identities — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsAlgebraic Expressions and Identities2 Marks
Question
Subtract:
$2 x^3-4 x^2+3 x+5 \text { from } 4 x^3+x^2+x+6$
✓

Answer

$\left(4 x^3+x^2+x+6\right)-\left(2 x^3-4 x^2+3 x+5\right)$
$=4 x^3+x^2+x+6-2 x^3+4 x^2-3 x-5$
$=4 x^3-2 x^3+x^2+4 x^2+x-3 x+6-5 \text { (Collecting like terms) }$
$=2 x^3+5 x^2-2 x+1$

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