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Maths CBSE Live product
Class 8 (2026-27)
We distribute yet things multiply
Increment in products
1.
TBQ - Expand the following product
Question:
2
m.
Answer variants:
z
2
−
27
x
+
12
−
z
2
+
12
z
−
27
Expand the following product.
\((3 - z)(z - 9)\)
Answer:
The property used to expand the product is
(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 + m)(b + n) = ab + mb + an + mn
.
\((3 - z)(z - 9)\) \(=\)
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