Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Solution
Using the formula, $$(x-y)^3 = x^3 - y^3 -3xy(x-y)$$
=> $$(m - 5n)^3 = m^3 - 125n^3 - 15mn(m-5n)$$
=> $$2^3 = m^3 - 125n^3 - 15mn*2$$
=> $$m^3 - 125n^3 - 30mn = 8$$
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
