Find all of the rational roots: 10x^3 + 69x^2 - 9x - 14 = 0

rational-roots

#1

Find all of the rational roots: 10x^3 + 69x^2 - 9x - 14 = 0

Answer:

testing the factors of -14 shows -7 to be a root…so x+7 is a factor of the expression … dividing by the factor will leave a quadratic … that can be factored, or use the quadratic formula to find the two remaining roots