Question

Which of the following methods would be the easiest to use to solve x^2-11=0?
A. Factoring
B. Isolating the x^2 term and finding the square root of both sides
C. Using the quadratic formula
D. All three methods would be easy and effective.


3. Which of the following methods would be the easiest to use to solve 2x^2+4x-7=0?
A. Factoring
B. Isolating the x^2 term and finding the square root of both sides
C. Using the quadratic formula
D. All three methods would be easy and effective

4. Solve: x^2-4x=0
A. {0,-16}
B. {0,-4}
C. {-4,0,4}
D. {0,4}

5. Which equation would be the best

Answer 1

Question 1:

B. x^2 plus 11 =0

x^2 = -11 (because you subtract the 11 from both sides)

/-------
\/ -11 = X