Solve the following quadratic equation: 6x2 + 3x - 30 = 0 {1/2,7/5} {3,-5/2} {-1/3,5}

What’s the answer answer to this question

How to do this , and can some one explain

In the figure below, triangle rpq is similar to triangle rts. what is the distance between p and q? a. 24 b. 42 c.50 d. 54