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12-03-2018
Mathematics

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PLEASE HELP AND EXPLAIN THE STEPS

f(x) = 9x^3 + 2x^2 - 5x + 4 and g(x)= 5x^3 - 7x + 4. What is f(x) - g(x)? Show all of your steps and write your finaly answer in factored form.

Respuesta :

tynollette tynollette

12-03-2018

9x³-5x³=4x³
2x²-nothing=2x²
-5x-(-7x)=2x
4-4=0
so the result of f(x)-g(x) is: 4x³+2x²+2x
factor it: 2x(2x²+x+1)

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