" 6.From the sum of "4x^(4)-3x^(3)+6x^(2),4x^(3)+4x-3

From the sum of 4x^4-3x^3+6x^2,\ 4x^3+4x-3 and -3x^4-5x^2+2x subtract 5x^4-7x^3-3x+4.

From the sum of 4x^4-3x^3+6x^2,\ 4x^3+4x-3 and -3x^4-5x^2+2x subtract 5x^4-7x^3-3x+4.

Subtract 6x^(3) -5x^(2)+4x-3 from the sum x+2x^(2)-3x^(3) and 2-x^(2)+6x-x^(3) .

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 x+2x^(2)+3x^(3)+4x^(4) +...

What is the HCF of 36(3x^(4)+5x^(3)-2x^(2)) , 9(6x^(3)+4x^(2)-2x),54(27 x^(4)-x) ?

From the sum of 5x^(2)-3x+7 and 2x-8x^(2)+5 subtract the sum of 13x+9x^(2)+6 and x^(2)-4x+1