Help pleaseee?

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Find the roots of the equation below. x^2 - 6 + 9 = 0

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.