OAR Math Skills: Algebraic Expressions Flashcards

7 cards from real OAR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 OAR Math Skills: Algebraic Expressions flashcards as text

Simplify: (x³)² ÷ x²
Answer: x⁴
(x³)² = x⁶, then x⁶ ÷ x² = x⁴.
What is the value of |3x - 7| when x = 1?
Answer: 4
|3(1) - 7| = |3 - 7| = |-4| = 4.
Which of the following is a binomial?
Answer: 3x + 5
A binomial has exactly two terms; 3x + 5 has two terms.
Simplify: (4x - 3) - (2x + 5)
Answer: 2x - 8
Distribute the negative: 4x - 3 - 2x - 5 = 2x - 8.
If f(x) = 2x² + 1, what is f(3)?
Answer: 19
f(3) = 2(9) + 1 = 18 + 1 = 19.
Expand: (x + 5)²
Answer: x² + 10x + 25
(x+5)² = x² + 2(5)x + 25 = x² + 10x + 25.
Solve for y in terms of x: 4x + 2y = 12
Answer: y = 6 - 2x
Subtract 4x: 2y = 12 - 4x, then divide by 2: y = 6 - 2x.