Question

simplify (identities algebra lesson) square krke solve krna hai
225 x 225 - 2 x 225 x 125 + 125 x 125
answer is 10000
I want only formula and performance ​

Answer 1

Step-by-step explanation:

There is rule when we solve any number's square which last number is 5 .Like 15,25,35,45,55,125,225 etc. then it's square is

15 square=1 ×it s next number and 5 square

=1×2and25=225

25 square=2×its next number and 5 square

=2×3 and 25=625

35 square=3×its next number and 5 square

=3×4and 25=1225

Like this 125 square=12×its next number and 5 square

=12×13 and 25=15625

225 Square =22×its next number and 5 square

=22×23 and 5 Square

=50625

I think now you are clear about the sum..