Question

factorise using identity a square minus 36 b square​

Answer 1

a² - (36b)²

Using identity- a² - b² = (a-b)(a+b)

a² - (36b)²

= (a-36b)(a+36b)

= a - 36b × a + 36b

= a - 36ba + 36b

= a - 36ab + 36b

Thus, a² - (36b)² = a - 36ab + 36b.