Question

7. If 3x - 4/x = 4 and x is not equals to zero ; find : 27x3-64/x3​

Answer 1

Answer:

3x-4/x=4

=3x^2-4=4x

=3x^2-4x-4=0

=3x^2-6x+2x-4=0

=3x(x-2)+2(x-2)=0

=(3x+2)(x-2)

=x=3andx=2

Given that

27x^3-64/x^3

=27(3)^3-64/(3)^3

27×27-64/27

=729-2.37

=726.63 or 208

Is the answer.

MARK AS BRAINLIST ANSWER