SAT Math Multiple Choice Question 496: Answer and Explanation
1. Which of the following are solutions to the quadratic equation ?
Correct Answer: B
Category: Passport to Advanced Math / Quadratics
Strategic Advice: Taking the square root is the inverse operation of squaring, and both sides of the equation are already perfect squares, so take their square roots. Then solve the resulting equations. Remember, there will be two equations to solve.
Getting to the Answer:
Now, simplify each equation: and .