Question

what is this answer of these questions​

Answer 1

Answer:

a) x^2 + 16+4x

Step-by-step explanation:

a) x^3 - 64

can be written as x^3-4^3

now the question will like this

x^3-4^3/x-4

now formula of x³-y³ can be used in x³-4³

then it will be (x-4)(x²+16+4x)

now the whole question will appear like this (x-4)(x²+16+4x)/(x-4)

x-4 will be cancelled

so the ans would be

x²+16+4x