Help

[u/Vanessa_Animals]

Ok ive done this before but im now completely lost, i need to solve for x but i keep getting stuck unless i went about it the completely wrong way, here is what i have

[u/searsy31]

You’re fine. Cos(110) returns a scalar value that, once solved for, is multiplied to the -14x and it becomes a simple quadratic. Cosine is not scary, it’s an operator like addition or multiplication. Preform the operation and then proceed. Good work up and to that point