What polynomial represents the difference below?

3x^2 + 8x +7
-(4x^2 - 2x)

Step-by-step explanation:

Let the age of Seema = P years old

1 / 4 of the age of Seema = 1 / 4 P years old

Seema's little sister = 5 years old

Seema's little sister

= ( 2 + 1 / 4 P ) years old

Equation ==>

2 + 1 / 4 P = 5

1 / 4 P = 5 - 2

1 / 4 P = 3

P = 3 ÷ 1 / 4

P = 3 × 4

P = 12

Seema is years old.

= P

= 12 years old