Question

I need help with 19,21,and 23

Answer 1

Answer:

  19. 4y+10

  20. 15y²-6

  21. 0.5x⁴+10.5

Step-by-step explanation:

The distributive property says the factor outside parentheses applies to each of the terms inside parentheses. Terms are collected in the usual way.

19. y + 4 + 3(y + 2) = y + 4 + 3y + 6 = 4y + 10

20. 3y² + 3(4y² -2) = 3y² + 12y² - 6 = 15y² - 6

21. 0.5(x⁴ - 3) + 12 = 0.5x⁴ - 1.5 + 12 = 0.5x⁴ + 10.5