Can someone plz help me with this? Only #5, both parts.

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

How to do this , and can some one explain

The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w