Description
For the polynomial below -3 is a zero
f(x)= x^3 + 9x^2 + 24x + 18
Express f(x) as a product of linear factors
Explanation & Answer
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x = -3 is a zero of the polynomial
So x + 3 is a factor.
Divide f(x) by (x+3) to find the other factors.
So
Now factorize since we need linear factors. We can use the quadratic formula to do that.
a = 1, b = 6, c = 6
The quadratic formula is
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