WELCOME

SUM &

DIFFERENCE

(x+y)(u-v) = xu-xv+yu-yv for all positive numbers x, y, u, v with u>v

The product of the sum and difference of two positive numbers is the difference of their squares.

The difference of the squares of two positive numbers is the product of their sum and difference.

(x+y)(x-y)=x²-y²For all positive

numbers x,y with x>y

DIFFERENCE OF SQUARES

x²

(x+y

)(x-y)

x

x

y² y

x

x-y

y

X²-y²x

x-y

x+ y

THANK YOU