Expand : ( x + y - z )^2 - Vidyadip

Question

Expand : $( x + y - z )^2$

✓

Answer

$( x + y - z )^2 $
$= x^2 + y^2 + z^2 + 2(x)(y) - 2(y)(z) - 2(z)(x)$
$= x^2 + y^2 + z^2 + 2xy - 2yz - 2zx$

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

Write the inclination of a line which is$: $Parallel to the $y-$axis.

Write the multiplicative inverse of:
$5 \frac{1}{4}$

State the variable are continue and which are discrete:
Number of patients in a hospital per day

State the variable are continue and which are discrete:
Distance travelled by a train

Write the slope of the line which is$: $Perpendicular to the $x-$axis.

State the variable are continue and which are discrete:
I.Q. of students of a class.

Solve the following equation for $A,$ if $ 2 \sin A = 1$

Write the multiplicative inverse of:
$\frac{-20}{41}$

Write a pair of irrational numbers whose product is irrational.

Without actual division, find which of the fractions are terminating decimal:
$\frac{121}{125}$