Question

please give me fast answer and please solve question number 9​

Answer 1

Answer:

3 ( 1) ^ 2 + 7*1 - a = 0

or, 3 + 7 - a = 0

or, 10 - a = 0

or, a = 10

Answer 2

Answer:

when x=1

3x2+7x-a

3×1×1 + 7×1-a =0

3+7-a=0

10-a=0

10=a

Hence value of a =10

hope it will help you.