Question

If a and B are the zeroes of the polynomial x' + 5x + 6,
then the value of a + B + aß is
(A) -11 (B) 11 (C) 1 (D) - 1​

Answer 1

Answer:

Option (C) 1

Step-by-step explanation:

p(x)=x^2+5x+6

a=1. b=5. c=6

sum of zeroes=-b÷a

=-5÷1

=-5

product of zeroes=c÷a

=6÷1

=6

A+B+AB=-5+6

=1

All the best....

Answer 2

Answer:

It is (C) 1

Step-by-step explanation:

x²+5x+6

D=b²-4ac

= 5²-4×1×6

=25-24 =1

Now.

Alpha= -5+√1 / 2×1

Which = -2

Beta= -5-√1 / 2×1

WHICH = -3

Therefore a= -2 and B=-3 and alpha×beta = 6

There fore (-2)+(-3)+6= 1