Question

If alpha and beta are the zeros of the polynomial X square + 3 X + 7 then Alpha square plus beta square is equal to

Answer 1

Answer:

Step-by-step explanation:

a=3, b= -12, c=15

since alpha and beta are zeroes

alpha+beta= -b/a = 4

alpha × beta = c/a = 5

=4×4 -2×5

=16-10

=6