Mastering Algebraic Expressions

What is an algebraic expression?

• An algebraic expression is a combination of numbers, variables, and operators without an equality sign.

• An algebraic expression is a single variable without any numbers.

• An algebraic expression is a formula that always equals zero.

• An algebraic expression is a number with an equality sign.

Identify the algebraic expression: 3x + 5

• 3x + 5

• 3x + 2

• 3x - 5

• 2x + 5

Which of the following is NOT an algebraic expression: 7, 2y + 3, x^2 - 4?

• 4y - 2

• 3x + 5

• x/2 + 1

• 7

Simplify the expression: 4x + 3x

• 4x + 4x

• 5x

• 7x

• 8x

What is the value of the expression 2x + 5 when x = 3?

• 5

• 14

• 11

• 8

Evaluate the expression: 5y - 2 when y = 4.

• 22

• 18

• 14

• 10

Add the expressions: 2x + 3 and 4x + 5.

• 6x + 8

• 4x + 3

• 2x + 5

• 5x + 7

Subtract the expressions: 6y + 2 from 10y + 5.

• 6y + 5

• 4y + 3

• 2y + 7

• 5y + 2

What is the simplified form of 3a + 4a - 2a?

• 4a

• 5a

• 3a

• 6a

If x = 2, what is the value of 3x^2 + 2x?

• 10

• 20

• 16

• 12