Question

a(a-2) -b(b-2) solve using formula a^2-b^2​

Answer 1

➡a(a-2) -b(b-2)

➡

$= {a}^{2} - 2a - {b}^{2} + 2b$

$= {a}^{2} - {b}^{2} - 2a + 2b$

=(a-b)(a+b) -2(a-b)

=(a-b)(a+b-2)