(17V + 4) - (- 4v - 7)

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas