Question

3. What must be added to 5x2 – 3x + 1 to get 3x3 – 7x2 + 8?

Answer 1

Answer:

subtract

5×2-3x+1-(3×3-7×2+8)

10-

Answer 2

Answer:

1x + 7

Step-by-step explanation

Let the number be A

5x 2 - 3x + 1 + A = 3x 3 - 7x 2 + 8

A = 3x 3 - 7 x2 + 8 - 5x 2 - 3x + 1

A = 3x + 2x + 2x - 3x - 5x + 3 - 7 + 8 + 2 + 1

A = 1x + 7