Question

Q5. Factorise: 15x ^ 5 − 135x ^3

Answer 1

Answer:

1) divide by 15

2) then equation will be x^5-9x^3

3) take x^3 as common

4) now equation is x^3(x^2-3^2)

5) now it is same as a^2-b^2=(a+b) (a-b)

I. e x^3 (x+3) (x-3)

equate it to zero and u will get the answer