What should be added to `2x^2+3x-5` to `x^2+x+1` ? ` x^2-4x+6` (b) `x^2-4x+6` (c) `x^2-4x+6` (d) `x^2-4x+6`

a. What should be added to 2x^(2)+6x-6 to get 3x^(2)-2x+6 ?

What should be added to x^(2)-x^(2) -x+1 to get 5x^(2) -4x^(2) +3x -1 ?

What should be added to x^(2)-x^(2) -x+1 to get 5x^(2) -4x^(2) +3x -1 ?

What should be added to 1/((x-2) (x-4)) to get (2x-5)/((x^(2) - 5x + 6)(x-4)) ?

What must be added to x^(4) -3x^(2) +2x+ 6 to get x^(4) -2x^(3) -x+ 8?

1/(x^2-3x+2)+1/(x^2-5x+6)+1/(x^2-4x+3)

Find ( 2x^2+3x+5 )+( 3x^2+4x+6 )

x ^ (3) + 5x ^ (2) -2x-24, x ^ (3) -4x ^ (2) + x + 6

Which of the following equations has 2 as a root? (a) x^(2)-4x+5=0 , (b) x^(2)+3x-12=0 (c) 2x^(2)-7x+6=0 , (d) 3x^(2)-6x-2=0