Download App

Expansions (Including Substitution) — MATHEMATICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9MATHEMATICSExpansions (Including Substitution)1 Mark
Question
Expand : $( x - 2y + 2 )^2$
✓

Answer

$( x - 2y + 2 )^2$
$= x^2 + (2y)^2 + (2)^2 - 2(x)(2y) - 2(2y)(2) + 2(2)(x)$
$= x^2 + 4y^2 + 4 - 4xy - 8y + 4x$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[1 Mark Question Answer]" from Expansions (Including Substitution)→Expansions (Including Substitution) — all question types→MATHEMATICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Separate the rational and irrational from among the following number:-
$\sqrt{25}$
→
If $\sqrt{3} = 1.732,$ find $($correct to two decimal place$)$ the value of $\sin 60^o$
→
Write the additive inverse of:
$\frac{5}{9}$
→
Write the additive inverse of:
0
→
Show that $x$ is irrational, if $x^2 = 6.$
→
Express the following in the exponential form$:-2 = \log_2 0.25$
→
Find the co$-$ordinates of points whose: Abscissa is $5$ and ordinate is $-1$
→
Write the additive inverse of:
0
→
If $x=\frac{\sqrt{5}-2}{\sqrt{5}+2}$ and $y=\frac{\sqrt{5}+2}{\sqrt{5}-2}$; find : $x^2+y^2+x y$
→
Solve the following equation for$ A,$ if $\sin 3 A =\frac{\sqrt{3}}{2}$
→