ANSWER
Step 3
EXPLANATION
The given polynomial expression is:
[tex]2 {p}^{2} - 3p - 7 - (3 {p}^{2} + p - 5)[/tex]
Fatau correctly expanded the parenthesis in the first step.
[tex]2 {p}^{2} - 3p - 7 - 3 {p}^{2} - p + 5[/tex]
Fatau also correctly grouped the like terms to obtain:
[tex](2- 3) {p}^{2} + (- 3 - 1)p + (- 7 + 5)[/tex]
Fatau committed a mistake at the third step.
Instead of obtaining,
[tex] - {p}^{2} - 4p - 2[/tex]
He mistakenly got:
[tex]{p}^{2} - 2p +2[/tex]
