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Maths CBSE Live product
Class 8
We Distribute, Yet Things Multiply
Mind the mistake, Mend the mistake
3.
Find the missing term
Question:
3
m.
Find the missing terms in the following simplication.
\((p + 2) (q + 9)\) \(= pq + 18\)
Answer:
The identity used is
(a+m)(b+n) = ab + mb + an + mn
(a+m)(b+n) = ab + am + bn + mn
.
Answer variants:
9
q
2
q
2
p
9
p
The missing terms in the simplification are
and
.
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