Question

यदि x2 + 5ax + 6a का एक गुणनखण्ड x + 3 हो तो a का मान है
(A)
2
(B) 1
(C)
- 1
(D) 3​

Answer 1

Answer:

Here's the Answer!!

(C) -1

Step-by-step explanation:

x +3= 0

x= ( -3)

P(x) = x2 + 5ax + 6a

P(-3) = (-3)2 +5a(-3) +6a

0= -9 -15a +6a

0= -9 - 9a

9= -9a

a= -9/ 9

a= (-1)

Hope it helps you!!