Question

a) p²-q² = ______(p-q)


b) Find 25²-5²​

Answer 1

$a) {p}^{2} - {q}^{2} = (p + q)(p - q)$

$b) {25}^{2} - {5}^{2}$

$= (25 + 5)(25 - 5)$

$= 30 \times 20$

$= 600$

Answer 2

Answer:

1)p2-q2=(p+q)(p-q)

as it follows the formula (a2-b2)=(a+b)(a-b)

2)25²-5²

625-25

=600(ans)