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Maths CBSE Live product
Class 8
We Distribute, Yet Things Multiply
PT3 Revision I - We Distribute, Yet Things Multiply
4.
Copy of TBQ - Expand and find the value
Question:
2
m.
Expand
a
−
u
b
−
v
and find the product of
48
\(\times\)
72
using the expansion.
Solution:
We know that,
(a - u)(b - v) = ab + ub - av + uv
(a - u)(b - v) = ab - ub - av - uv
(a - u)(b - v) = ab - ub + av + uv
(a - u)(b - v) = ab - ub - av + uv
.
The given product is expanded as
i
−
2
i
−
8
.
The final answer is
.
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