(4+2)+8=14 choose an equivalent addition sentence that shows the associative of addition​

14 = 14

Step-by-step explanation:

(4 + 2) + 8 = 14

6 + 8 = 14

14 = 14

2 5/8 is the final answer! : )

- 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