CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Factorise:
$$(l + m)^2 -(l -m)^2$$


A
4lm
loader
B
4m
loader
C
4l
loader
D
4
loader

Solution

The correct option is A $$4lm$$
$$(l + m)^2 - (l-m)^2$$
$$=[l^2+m^2+2lm-(l^2+m^2+2lm)]$$
$$=[l^2+m^2+2lm-l^2-m^2+2lm]$$
$$=4lm$$

Mathematics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image