Question

what should be value of p if the value of 3x²+4x-p is 5,when (a)x=-1,(b)x=1​

Answer 1

Answer:

Step-by-step explanation:

3x²+4x-p=5

when x=-1

3×(-1)²+4×(-1)-p=5

3-4-p=5

-1-p=5

p= -6

now if x=1

3×(1)²+4×1-p=5

3+4-p=5

7-p=5

p=2