What is the sum of the roots of the polynomial shown below?

f (x) = x2 + 2x2 - 117 - 12

Question

Mathematics

Quinten Kramer

25 February, 17:21

What is the sum of the roots of the polynomial shown below?

f (x) = x2 + 2x2 - 117 - 12

+3

Answers (1)

Know the Answer?

Dillon Spears · Answer 1

x^3 + 2*x^2 - 11*x - 12 = 0 = >

=> x^3 + 2*x^2 - 11*x - 12 = 0

=> (x - 3) * (x + 4) * (x + 1) = 0

the roots are 3,-4,-1

I just add them,

3 + (-4) + (-1) = -2

What is the sum of the roots of the polynomial shown below?f (x) = x2 + 2x2 - 117 - 12

What is the sum of the roots of the polynomial shown below?

f (x) = x2 + 2x2 - 117 - 12