Question

factorise 1 - 64 a ^3​

Answer 1

Step-by-step explanation:

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Answer 2

Answer: = (1 - 4a) (1 + 4a + 16a^2)

Step-by-step explanation:

(1)^3 - (4a)^3. { Can be written like this }

(1 - 4a) {1^2 + (1)(4a) + (4a)^2}

(1 - 4a) (1 + 4a +16a^2)

Because,

x^3 - y^3 = (x - y) (x^2 + xy + y^2)