Find the missing number to the equation has no solution -2x+10 =_x+13

-2

Step-by-step explanation:

if you have -2, you add 2x on both sides, the x cancel out and you get 10=13, which is wrong. there is no solution.

if you have any other number in the blank, you can bring all of the x to one side easily. if you have -2, you can't do that

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

d. is the correct answer

step-by-step explanation: