What the simplified form of 2x+3-x+5

This is different from the first one can someone me

Select a graph that have an equation with a < 0

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1