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Operations on Algebraic Expressions — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsOperations on Algebraic Expressions2 Marks
Question
Find the following products:
$\left(9 x^2-x+15\right) \times\left(x^2-3\right)$
✓

Answer

$\left(9 x^2-x+15\right) \times\left(x^2-3\right)$
$=\left(9 x^2-x+15\right) \times x^2\left(9 x^2-x+15\right) \times(-3)$
$=9 x^4-x^3+15 x^2-27 x^2+3 x-45$
$=9 x^4-x^3-12 x^2+3 x-45$

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