What does the term 'expression' refer to in algebra?
A). A mathematical phrase containing numbers and variables
B). An equation with an equal sign
C). A statement that is always true
D). A function with inputs and outputs
What is the purpose of using variables in algebra?
A). Representing unknown quantities
B). Making calculations faster
C). Adding complexity to equations
D). Ignoring numerical values
What is the fundamental concept of algebra?
A). Solving equations
B). Studying biology
C). Programming languages
D). Art and literature
Which of the following is a trinomial in algebra?
A). 2x^2 + 5
B). 3x^3 + 2x^2 - x
C). x^2 - 4 + 6
D). 4x + 7
Which property allows you to multiply a sum by distributing the multiplication over each term?
A). Distributive property
B). Commutative property
C). Associative property
D). Identity property
Which of the following is a variable in algebra?
A). x + 5
B). 10
C). 2x
D). y * z
What is the solution to the equation 2x + 3 = 7 in algebra?
A). x = 4
B). x = 2
C). x = 5
D). x = 1
What is the degree of the polynomial 4x^3 + 2x^2 - x + 7?
A). 1
B). 2
C). 3
D). 4
In algebraic expressions, what does the term 'exponent' represent?
A). The number being multiplied
B). The result of multiplication
C). The base raised to a power
D). The constant term
What is the solution to the equation x^2 - 4 = 0 in algebra?
A). x = -2
B). x = 2
C). x = -4
D). x = 4