If 64x3 - 343y3 = (4x - Ay) X (Bx2 + 49y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.

If x² + px + q = 0 has roots 4 and -3, find the values of p and q.
The speed of a car is 25% more than that of a bike. Both of them start from a same point. After travelling for 4 hours, the speed of the bike is increas...
If √d + (1/√d) = 6, then find the value of d + (1/d).
If 2x+1, x+2, 2 and 5 are in proportion, then what is the mean proportional between 3.5(1-x) and 8(1+x)?
If a 2 + b 2 = 89 and a 2 - b 2 = 39, then find the value of a 3 - b 3 - 3...
If x2 – 5x + 1 = 0, then find the value of {x2 + (1/x2)}.
Find the value of ‘x’ in the given expression
(49/16)x × (64/343)x-1 = 4/7
If [x + (1/x)] = 3, find [x2 + (1/x2)].
