Whats the difference of (2x+3x squared) - (7-8x squared)

Need on this one asap im almost done with this subject

Points a and b are to be mapped onto a number line according to two equations the solution to the equation 2/3 a equals -24 is the coordinate of point a. solution to the equation 20 equals negative b / 0.2 is the coordinate of point b. (a)solve the first equation to find the coordinate of point a show your work (b)be solved the second equation to find the coordinate of point b show your work (c)determine the distance between the points a and b explained

What is -23,-19,14,5, and -8 in order from least to greatest