(x + 5)2 + (x-3)2 over 8 for first set of numbers over 4 second set of numbers but the parentheses for second set of numbers includes the whole fraction not just the top numbers like the first set. how do I figure out the answer

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.