Gujarat BoardEnglish MediumSTD 7MATHSAlgebraic Expressions1 Mark
Question
When $a = 0, b = – 1$, find the value of: $2 a^2 b+2 a b^2+a b$
✓
Answer
The given expression is: $2 a^2 b+2 a b^2+a b$
Put $\mathrm{a}=0$ and $\mathrm{b}=-1$, we get
$2 a^2 b+2 a b^2+a b=2(0)^2(-1)+2(0)(-1)^2+0(-1)$
$=2(0)(-1)+2(0)(1)+0$
$=0+0+0=0$
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