Multiply 3x²y and (2x³y³ − 5x²y + 9xy)

If Guru wants to multiply the expressions (2x+3y+50) and 3xy , what is the resultant expression?

Find the value of 998² by using (a − b)² identity 

Simplify (3x + 5y) (3x - 5y) by using (a + b) (a − b) identity

Expand (y - 5)³

Sethu travelled (4x²+3xy²+5x)km in ‘2x’ hrs. Find his speed of travel.

Factorize: 8p³+ q³

Simplify (5 -x) (3 - 2x) (4 - 3x).

If x+y=12 and xy=14 find x²+y²

Divide.6x²yz-3xy³z+8x²yz⁴ by 2xyz