How do you find zeros of #y=-4x^3+100x#?
1 Answer
Sep 20, 2016
Explanation:
The zeros of the function are the values of x that make y = 0.
solve:
#-4x^3+100x=0# Factorising gives.
#-4x(x^2-25)=0rArr-4x(x-5)(x+5)=0#
#rArrx=0" and " x=+-5" are the zeros"#
