Question

If Alpha and betta are zeroes of polynomial x2 +x +1 find vaalie of 2alpha+2betta

Answer 1

Answer:

the answer is -2.

Step-by-step explanation:

the explanation is simple.

we can get from the quadratic equation that α+β=1/1

now ,the question is to find 2α+2β

we know that α+β = -b/a

therefore 2α+2β can be rewritten as 2(α+β).

therefore,2(-1/1)

=(-2).

please mark my answer as the brainliest....

Answer 2

alpha + betta = -b/a
= -1/1 = -1

2( alpha + betta ) = -2