Algebraic Expressions and Identities — MATHS STD 8 — Question
Gujarat BoardEnglish MediumSTD 8MATHSAlgebraic Expressions and Identities1 Mark
Question
Add $3 a(a-b+c)$ and $2 b(a-b+c)$.
✓
Answer
We have, $3 a(a-b+c)+2 b(a-b+c)$ $=3 a \times a-3 a \times b+3 a \times c+2 b \times a-2 b \times b+2 b \times c $ $=3 a^2-3 a b+3 a c+2 a b-2 b^2+2 c $ $=3 a^2-2 b^2-a b+3 a c+2 b c$
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