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Algebraic Expressions and Identities — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsAlgebraic Expressions and Identities2 Marks
Question
Evaluate the following:
$994 \times 1006$
✓

Answer

Here, we will use the identity $(x+a)(x+b)=x^2+(a+b) x+a b$.
$994 \times 1006$
$=(1000-6) \times(1000+6)$
$=1000^2+(6-6) \times 1000-6 \times 6$
$=1000000-36$
$=999964$

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