`7a^3+56b^3`

If   a : b = 7 : 3 , then find ( a^3 - b^3 ) /b^3

Factorize the following expressions 7x^3+56y^3

The value of 2a^(3)-[3a^(3)+4b^(3)-{2a^(3)+(-7a^(3))}5a^(3)-7b^(3)] is (a) -11a^(3)+3b^(3)( b) 7b^(3)+3a^(3)(c)11a^(3)-3b^(3) (d) (11a^(3)+3b^(3))

If a+b=15 and ab=56, the value of (a^3+b^3) div (a^2+b^2) is :

The geometric mean of 28a^5/b and b^3/7a^3 is …..

Find the following products: 2a^3(3a+5b) (ii) -11 a(3a+2b) (iii) -5a(7a-2b)

The pH of the acid rain is approximately a)5.6 b) 2-3 c) 7-9 d) gt 10

If points (1,2),(-5,6) and (a,-2) are collinear,then a=-3 (b) 7(c)2(d)-2