Question

1.
The product of the zeros of the quadratic polynomial x2 + 4x – 5 is:
(A) 5
(B)
4
(C)-4
(D)
--5
2.
If the sum and product of the zeros of a quadratic polynomial are 2 and
-8 respectively, then the quadratic polynomial is :
(A)
x2 + 2x - 8
(B) x2 - 2x + 8
+ 8
(C)
x2 – 2x – 8
-
(D) x2 + 2x + 8​

Answer 1

Answer:

Step-by-step explanation:

P(x)=x  2  +4x−5

⇒P(x)=x  2  +5x−x−5

⇒P(x)=x(x+5)−1(x+5)

⇒P(x)=(x+5)(x−1)