Which of the following solutions to the quadratic equation? Check all that apply 2x^2 + 5x - 10 = x^2 + 4

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.