" (3) "x^(3)+7x^(2)-2x-40" Multiply by "

Multiply 7x^2 by 8y^2

Multiply: 2x by (3x+5y)

Multiply: 2x by (3x+5y)

Multiply (2x^(3) - 5x^(2) - x + 7) by (3 - 2x + 4x^(2))

Multiply 3x by (2x + 5y)

From the sum of 6x^(4) - 3x^(3) + 7x^(2) - 5x + 1 and -3x^(4) + 5x^(3) - 9x^(2) + 7x - 2 subtract 2x^(4) - 5x^(3) + 2x^(2) - 6x - 8

Find the sum of the following algebraic expressions : 3x^(3) - 5x^(2) + 2x + 1 , 3x - 2x^(3) - x^(3) , 2x^(2) - 7x + 9

Factorise : 2x^(3) + 7x^(2) + 2x -3