Question

Factorise: 9$(x-1)^{2}$-16$(x+2)^{2}$

Answer 1

Answer:

-(7x + 5)(x+11) is the factorised form of above equation

Answer 2

Answer:

IDENTITY USED -

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