Help me please u will give you that brain crown

For what values of x is x2 + 2x = 24 true?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i