Simplify the expression. 5k(-6k^2 -2k+6)

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Find the solutions for a triangle with a =16, c =12, and b = 63º

Given abcd ac=38 and ae=3x+4 find the value of x