Question

Find the value of a,if 2x²+9x+a is divisible by x+2

Answer 1

Answer:

here ur ans

x+2 = 0

x = -2

put it in equ

2(-2) ^2+9(-2)+a = 0

2(4) - 18 + a = 0

8 - 18 + a = 0

-10 + a = 0

a = 10

I hope u understand

Answer 2

Answer:

a = 10

Step-by-step explanation:

2x² + 9x + a

it is divisible by x + 2

therefore

x + 2 = 0

x = - 2

substitute x = - 2 in equation

2(-2²) + 9(-2) + a = 0

2(4) + (-18) + a = 0

8 - 18 + a = 0

- 10 + a = 0

a = 10

Hope you get your answer