Advanced MathEasyArea of a square with side 2x
Advanced Math practice question
The side length of a square is 2x. Which expression gives the area of the square?
- A. 4x²Correct
- B. 2x²
- C. 4x
- D. 2x
Answer: A. 4x²
(2x)(2x) = 4x².
Why the other answers are wrong
- B. 2x²
- Only the x was squared.
- C. 4x
- Only the 2 was squared.
- D. 2x
- That is the side, not the area.
More Advanced Math questions
- Easy
If f(x) = 3x − 7, what is the value of f(5)? - Easy
What are the solutions to x² − 9 = 0? - Easy
Which of the following expressions is equivalent to x² + 7x + 12 ? - Easy
The function g is defined by g(x) = x³ + 2x. What is the value of g(−2) ? - Easy
For x > 0, which of the following is equivalent to ∛(x⁵) ? - Easy
The function h is defined by h(x) = (x − 6)(x + 2). What is one value of x for which h(x) = 0 ?
Not affiliated with the College Board. SAT is a trademark of the College Board.