Question

factorize 9p square - 25

Answer 1

$\sf{9p {}^{2} - 25} \\ \sf{ = (3p) {}^{2} - 5 {}^{2} } \\ \sf{ \orange{ = (3p + 5)(3p - 5)}}$

Formula used,

$\mathcal{ \blue{(a {}^{2} - b {}^{2} ) = (a + b)(a - b)}}$