Question

Find the x-intercept and y-intercept (zeroes of the function)

1.) P(x)=x^4- 9x^2
2.) P(x)= 2(x-5)(x+2)^2

Answer 1

#1.
P(x) = x^2(x^2-9) = x^2(x-3)(x+3)
x-intercepts are clearly 0,-3,3
P(0) = 0 for the y-intercept.

Answer 2

thanks a lot... :)