Question
Using the standard formulae, expand:
(3a + 2b) (3а - 2b)
(3a + 2b) (3а - 2b)
✓
Answer
$9 a^2-4 b^2$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Evaluate the following$: \frac{\tan 12^{\circ}}{\cot 78^{\circ}}$
→Factorise $: 4 x^2+\frac{1}{(4 x)^2}+1$
→Evaluate $: \sin^2 35^\circ - \cos^2 55^\circ$
→Factorise : $a^3+a b(1-2 a)-2 b^2$
→In the adjoining figure, ABCD is a parallelogram.
$BM \perp AC$ and $DN \perp AC$.
Prove that :
(i) $\triangle BMC \equiv \triangle DNA$.
(ii) $BM = DN$.
→$BM \perp AC$ and $DN \perp AC$.
Prove that :
(i) $\triangle BMC \equiv \triangle DNA$.
(ii) $BM = DN$.
Using the standard formulae, expand:
$(x-5)(2 x-1)(2 x+3)$
→$(x-5)(2 x-1)(2 x+3)$
Using the standard formulae, expand:
$(9+2 x)(9-3 x)$
→$(9+2 x)(9-3 x)$
Factorise:
a (a - 2b - c) + 2bc
a (a - 2b - c) + 2bc
If $\frac{1}{x+y}=\frac{1}{x}+\frac{1}{y},(x \neq 0, y \neq 0, x \neq y)$, then find the value of $x^3-y^3$.
→A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edges of two smaller cubes are 6 cm and 8 cm, find the edge of third smaller cube.