Advanced MathEasy–MediumEquation with x squared plus a constant
Advanced Math practice question
If x² + 3 = 52 and x > 0, what is the value of x?
Answer: 7
x² = 49, so x = 7.
Common wrong answers
- If you answered 49
- 49 is x², not x.
- If you answered 7.4
- 7.4 is √55, adding 3 instead of subtracting.
- If you answered 24.5
- 24.5 is 49/2, halving instead of taking the square root.
More Advanced Math questions
- Easy–Medium
If f(x) = 2x² − 3, what is f(4)? - Easy–Medium
Which expression is equivalent to (2x³)(3x⁴)? - Easy–Medium
What are the solutions to x² − 16 = 0? - Easy–Medium
Which expression is equivalent to (x + 5)²? - Easy–Medium
For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
What are the solutions to the equation 2(x − 3)² − 32 = 0 ?
Not affiliated with the College Board. SAT is a trademark of the College Board.