Has anyone done the Math integers unit test my little sister need help with it aka: needs the answers

For what values of x is x2 + 2x = 24 true?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Which of the following best describes the figure?