Simplify the expression:

3x² - x + 7 + 5x + 2 - 2x²

• x² + 4x + 9

• 5x² + 9

• 15

• 15x

2xy can be combined with 3xy²

• True

• False

2(4 + 9w) 

• 8+9w
• 2+9
• 8+18w
• 2+9w

-4(-4d + 5)

• -16d+20

• 16+20

• 16d+ -20

• 16s-20

4(5+3g)

• 9+8g
• 20g+12
• 20+12g

Evaluate 5m when m=8

• 58
• 13
• 85
• 40

Evaluate 8 + g when g=28

• 36
• 288
• 20
• 828

Write an algebraic expression for:
8 more than a number

• 8 + n
• 8n
• 8 -n
• n-8

Write an algebraic expression for:
6 minus a number

• n - 6
• 6 - n
• 6n
• 6 + n

What step would I do second?
 (4 - 2) x 9 + 7 =

• multiplication
• subtraction
• addition
• dividing