Equations and expressions

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:
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

Which of the following is equivalent to 6(8x -2)?

• 48x - 6
• 48x - 12
• 36x
• 42x

Tags

CCSS.6.EE.A.3

Which of the following is equivalent to 9(5c + 4)?

• 45c + 36
• 81c
• 45c + 4
• 49c

Which of the following is equivalent to 9(5c + 4)?

• 45c + 36
• 81c
• 45c + 4
• 49c

Tags

CCSS.6.EE.A.3

-3(2c - 5)

• -6c - 15
• -6c + 15
• 6c + 15
• 6c - 15

Which of the following is equivalent to 4(2x - 3)

• -4x
• 8x - 3
• 8x - 12
• -4

2(c - 8)

• 2c - 16
• 2c + 16
• 2c - 8
• c - 16

5(a + 6)

• 5a + 6
• a + 30
• 5a + 30
• 5a - 30