Question

if alpha and beta are the zeros of the quadratic polynomial 3x square + 5 x + X evaluate one by Alpha plus one by beta ​

Answer 1

Step-by-step explanation:

As I’m lazy, I won’t use Greek letters for the roots; instead, I will use p and q. As these are the roots of your quadratic, then:

2x2+5x−10=2(x−p)(x−q)=2x2−2(p+q)x+2pq

Thus 2pq=−10→pq=−5

Answer 2

Answer:

-5/7

Step-by-step explanation:

Hope this helps you...