Question

If x+y=10 and x-y=4, find the value of x power 2-y power2

Answer 1

Answer:

40

Step by Step explanation:

Given:

x+y=10

x-y=4

we know that

(x+y)(x-y) = x^2-y^2

therefore,

x power 2 - y power 2 = 10*4 = 40

Hope it Helps!

Answer 2

Answer:

40

Step-by-step explanation:

given:

x+y=10

x-y=4

we know that

(x+y) (x-y) =x²-y²

there fore

x²-y²

=10×4

=40 Answer