Question 270625
Let: x - be the number
 ^ - means raised

   3x^2 + 10 = 85
   3x^2 = 85 - 10
   3x^2 = 75 --divide by 3 on both side
    x^2 = 25 -- take the sq. root on both side

    x = +5 and -5 ----answers