SOLUTION: Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in completely factored form involving complex nonreal, or ima

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Question 22131: Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in completely factored form involving complex nonreal, or imaginary numbers.
x to the 4th power + 7x to the second power - 18

Answer by Earlsdon(6103) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
x%5E4+%2B+7x%5E2+-+18
%28x%5E2+-+2%29%28x%5E2+%2B+9%29 This is as far as we can go for part 1.
Factor completely:
x%5E4+%2B+7x%5E2+-+18
%28x%5E2+-+2%29%28x%5E2+%2B+9%29
%28x+%2B+sqrt%282%29%29%28x+-+sqrt%282%29%29%28x+%2B+3i%29%28x+-+3i%29