Question

5. If (x - 1) is a factor of x3 + 7x2 + ax - 3, then
find the value of a.​

Answer 1

Answer:

a=-5

Step-by-step explanation:

x³+7x²ax-3=0....... (1)

(x-1) is a factor.....(Given)

Therefore,x-1=0

x=1

Now substituting the value of x in(1)

(1) ³+7(1) ²a(1) -3=0

1+7+a-3=0

8+a-3=0

5+a=0

a=-5

Answer 2

Answer:

hope it helps you

yhehdhjddidi