Find the area of a square with side (21+mn) units.
Answers
Answered by
5
Answer:
(21+mn) × (21+mn)
=21(21+mn) +mn(21+mn)
=441+21mn+21mn+mn2
=441+42mn+mn2
it is the area of that square
Answered by
21
Step-by-step explanation:
(21+ mn ) + ( 21 + mn)
= 21 ( 21 + mn ) + mn ( 21 + mn )
= 441+21 mn + 21 mn + mn2
= 441 + 42 mn + mn 2
it is the area of the square.
Similar questions
Math,
2 months ago
English,
2 months ago
Environmental Sciences,
4 months ago
World Languages,
4 months ago