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 degree of the polynomial 4x^3 + 2x^2 - x + 7?
A). 1
B). 2
C). 3
D). 4
What is the solution to the equation 3(x + 4) = 21 in algebra?
A). x = 3
B). x = 5
C). x = 7
D). x = 9
Which of the following is a binomial in algebra?
A). 2x^2 + 5
B). 3x^3 + 2x^2 - x
C). x^2 - 4
D). 4x + 7
Which of the following is a valid algebraic identity?
A). (x + y)^2 = x^2 + y^2
B). (x + y)(x - y) = x^2 + y^2
C). (x + y)^2 = x^2 - y^2
D). x^2 - y^2 = (x + y)^2
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
What is the correct order of operations in algebraic expressions?
A). Parentheses, Exponents, Multiplication/Division, Addition/Subtraction
B). Exponents, Parentheses, Addition/Subtraction, Multiplication/Division
C). Multiplication/Division, Exponents, Addition/Subtraction, Parentheses
D). Addition/Subtraction, Multiplication/Division, Exponents, Parentheses
What is the fundamental concept of algebra?
A). Solving equations
B). Studying biology
C). Programming languages
D). Art and literature
What is the solution to the equation 2x + 3 = 7 in algebra?
A). x = 4
B). x = 2
C). x = 5
D). x = 1
Which property of algebra allows you to add or multiply terms in any order?
A). Commutative property
B). Associative property
C). Distributive property
D). Identity property