Write in slope-intercept form, leaving the slope as a decimal: 1.5x-y/3=18

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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.

With #! i’ve tried to figure it out but i can’t.

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1