Fundamentals: Expressions

Simplify: x + 3x + 6x + x

• 9x

• 11x

• 2x + 9x

• Can't be simplified

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

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

• Can't be simplified

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

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

3x²-x+2-5x²+8x-5

• 8x²+9x+7
• -2x²+7x-3
• 2x²+7x-3
• 5x²-3

Like terms have the same _____ and the same _____.

• variables and numbers
• signs and numbers
• variables and exponents
• variables and signs

2(4k + 7) 

• 4k-9
• 4K+9
• 8k-14
• 8k+14

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

• 8x + 12
• 8x + 3
• 8x - 12
• 20x

Simplify the expression by using the Distributive Property:

3(2h + 3c + 2)

• 6h + 9c + 2

• 6h + 9c + 6

• 2h + 3c + 6

• 5h + 6c + 5