Pls help and with this mathematical question above

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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.

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong