Question

Solve the quadratic equation. 48 - 8x2 = 0 Check your solution by substituting your answer back in the equation.
A. ± √6
B. ± 2√2
C. ± (2√2)/√2
D. ± (4√3)/(2√2)

Answer 1

The easiest way to solve something like this when they ask you to plug in the solution is to plug in the answers.

Answer 2

48 - 8(sqrt6)^2 = 0
48 - 8(6) = 0
48 - 48 = 0
True
So the correct answer is A.

Answer 3

Thanks.

Answer 4

No problem buddy. :)