12a4b 75b3Solution12a4b 75b3 we would factorsise the polyno

Solution

12a^4b -75b^3

we would factorsise the polynomial:

b can be taken out as common term :

b( 12a^4 - 75b^2)

taking 3 as common: 3b(4a^4 -25b^2)

appying formula =x^2 -y^2 = (x+y)(x-y)

So,3b(4a^4 -25b^2) = 3b(2a^2 +5b)(2a^2 -5b)