combining like terms

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

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

Tags

CCSS.6.EE.A.2B

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Tags

CCSS.7.EE.A.1

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

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

Tags

CCSS.7.EE.A.1

Simplify the following expression by combining like terms:
(3b - 4) - (4b + 6)

• -b + 2
• -b - 10
• 7b - 10
• 7b + 2

Tags

CCSS.7.EE.A.1

Simplify the following expression by combining like terms:
3(2x - 4) + 6x - 1

• 12x - 13
• 12x - 5
• 11x - 2
• -x

Tags

CCSS.6.EE.A.3

Simplify the following expression by combining like terms:
x(3x + 4) + 2x

• 6x + 4
• 3x² + 6x
• 3x² + 2x + 4
• 9x²

Tags

CCSS.6.EE.A.3

a + a + a + a

• a + 4 
• 4a 
• a to the fourth power 
• 4a + 4 

Tags

CCSS.7.EE.A.1

X+X+X+X+X

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

Tags

CCSS.7.EE.A.1

2r + 2 + 5r - 2 + r 

• 8r 
• 8r - 4 
• 12r 
• 7r + 4 + r 

Tags

CCSS.7.EE.A.1

6x + 1 + 7x 

• 13x - 1
• 14x 
• 7x + 6x + 1 
• 13x + 1 

Tags

CCSS.7.EE.A.1