Simplify: (7a − 9c) − (−12a − 33c) − (−21a + 10c)

−40a − 60c
2a + 22c
−26a − 32c
40a + 14c

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30