Simplify the following using identity
(2m+5n)²-(2m-5n)²
Answers
Answered by
3
By identity
(a+b)^2 -(a-b)^2=4ab
a=2m ,b=5n
So answer
=40mn
(a+b)^2 -(a-b)^2=4ab
a=2m ,b=5n
So answer
=40mn
ansh85:
please give me answer step by step
Answered by
8
→ [(2m)^2 + 2×2m×5n + (5n)^2]–[(2m)^2 – 2×2m×5n + (5n)^2]
→(4m^2+20mn+25n^2)–(4m^2–20mn+25n^2)
→4m^2+20mn+25n^2–4m^2+20mn-25n^2
→40mn is the Answer
→(4m^2+20mn+25n^2)–(4m^2–20mn+25n^2)
→4m^2+20mn+25n^2–4m^2+20mn-25n^2
→40mn is the Answer
how
are you using on android or pc
yar 2 ko press kar
so it come upside
oh ok i got it thanks
please try
4²
like this
yes
thanks
Similar questions