With a square or rectangular shape, the formula for figuring out how big an area is is simple: multiply the length and width of the shape by the square feet is the surface area of a pool that is feet long and feet wide (8x 10).
Hello,
The excluded values are the roots of the denominator.
x²-7x+10=x²-2x-5x+10=x(x-2)-5(x-2)=(x-2)(x-5)
Roots of the denominator are x=2 and x=5
