SOLUTION: I need some help please Find all zeros of f(x)=3x^2(x-5)(2x+9)^3(x-4) and their multtiplicatee thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need some help please Find all zeros of f(x)=3x^2(x-5)(2x+9)^3(x-4) and their multtiplicatee thank you      Log On


   



Question 61893: I need some help please
Find all zeros of f(x)=3x^2(x-5)(2x+9)^3(x-4) and their multtiplicatee
thank you

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=3x^2(x-5)(2x+9)^3(x-4)
Set each factor = to 0 and solve for x to find the 0's.
3x%5E2=0
3x%5E2%2F3=0%2F3
x%5E2=0
sqrt%28x%5E2%29=sqrt%280%29
x=0
:
x-5=0
x-5+5=0+5
x=5
:
2x+9=0
2x+9-9=0-0
2x/2=-9/2
x=-4.5
:
x-4=0
x-4+4=0+4
x=4
:
I'm not sure what you mean by multipliatee.
The zeroes are: x={0,5,-4.5,4}
Happy Calculating!!!