Alg 1 2.1

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

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

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

Which of these is the correct use of the distributive property for the following expression?
5(2x - 8)

• 10x - 8
• 10x + 40
• 7x - 3
• 10x - 40

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

• -b + 2
• -b - 10
• 7b - 10
• 7b + 2

-7(x + 3) 

• 7x+21
• -7x-21
• -7x+21
• 7x-3

-5(-x + 3) 

• 5x+15
• 5x-15
• 5-3x
• 3x+5

 -2y + 8 + 7y + 5

• -5y-13
• 9y+13
• 5y+13
• 9y-13

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

If x=5,find the value of 7x-1

• 34
• 36
• 35