i cant solve this precal problem can someone help me?

Question

10SinA^2 + 7SinA + 10=0
i just need help factoring it for now i know how to do the rest.

Answer 1

Thing of it this way:
10x^2 + 7x + 10 = 0

Are you sure this is correct? If it's -10 at the end, you can factor it, or 1x^2 at the start. Otherwise you get an imaginary number.