Simplify the expression completely. (5√50-3√200+3√18)

Which expression is equivalent to 2x^2+7x+4?

Me n o w. i need t h i s. 10 points

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)