Simplifying Polynomials

Combine like terms
3x + 2x + 3y - 7y

• 5x + 10y
• 5x + 4y
• 5x - 4y
• 5x -10y

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y
• 3x, 9x
• 3x, -9x
• 3x, -9x, 2x²

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11
• 11x + 11
• 16x² - 5x + 11
• 10x²

Simplify the following expression:
3 + 5x + 8 - 2x

• -3x² - 11
• 3x² + 11
• 11 - 3x
• 11 + 3x

Which of these are like terms in the following expression:
(3x + 7 - 9x) + (24y + 2x²)

• 7, 24y
• 3x, 9x
• 3x, -9x
• 3x, -9x, 2x²

n -10 +9n -3=

• -3
• 9n-3
• n
• 10n -13

X+X+X+X+X

• X + 5 
• 5X
• X+X+X+X+X+5
• X to the 5th power 

y + x + y + y + x 

• 2 + 3 
• x + y 
• 2x + 3y 
• 5xy 

Simplify the expression:
-2x² - x + 1 - x² + 3x - 5

• -2x² + 2x - 6
• -3x² + 2x - 4
• 2x² + 2x + 4
• -3x² + 4x - 4