Solution
$$(a + b)^ 3$$ = $$a^3$$ + $$b^3$$ +3ab(a+b)
$$8^ 3 $$ = $$ a^3 + b^3 + 3 \times \frac{32}{3}\times 8 $$
512 = $$a^3$$ + $$b^3$$ + 256
$$a^3$$ + $$b^3$$ =256
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
