Question

Factorise (a-5)^2 - (a-8)^2 to get the answer 3(2a-13)

Answer 1

Answer:

${(a - 5)}^{2} - {(a - 8)}^{2} = \\ (a - 5 + a - 8)(a - 5 - a + 8) = \\ 3(2a - 13)$