4+^2/2+^2=x+y^2 find the value of x and y
without actually calculating the cubes, find the value of (-18)^3+(-12)^3+(30)^3.
Factorise 8 x power 3 + 27 Y power 3 + 36 x power 2 + 54 X Y power 2
sir, I didn't understand very well, so please convince me as like video.