Question

Expand l is equal to root of h saqure +r sq

Answer 1

Answer:

I=(h+r)(h-r)

Step-by-step explanation:

I=h^2+r^2.

I=(h+r)(h-r). [ by using the formula a^2-b^2 ]

Answer 2

Step-by-step explanation:

"I"can be expressed as

I = ((h+r)^2)-(2*h*r).

or

I = ((h-r)^2)+(2*h*r)

by using (h+r)^2 = h^2 + r^2 + (2*h*r)

or (h-r)^2 = h^2 + r^2 - (2*h*r)