1. ## Factorise

factorise :

15sin^2 θ° + sinθ° +12

x

2. Originally Posted by minimeissner
factorise : 15sin^2 θ° + sinθ° +12
How would you factor the quadratic $15x^2\, +\, x\, +\, 12$?

Factor this "quadratic" in the same way!

Note: Unless there's a typo or you're supposed to factor with complex values, this "quadratic" is actually prime, since there are no factors of (15)(12) that add up to 1.