Find for what `value//values` of x the value of `8x-x^2-15` is
the greatest

X :8::2:5 find the value of x

Find the value of x if |2x+6|=-8

If x=5, find the value of : 3x^(2)-8x-10

Find the value of X: 8x^(2)+10x+3=0

If x= 3+i , then find the value of x^(3)-3x^(2)-8x+15

Value of x for x^(2)-8x +15 = 0 is

Find the greatest and least value of (x+2)/(2x^(2)+3x+6)

Find the value of x for which the following expressions acquire greatest value ? Also determine their greatest values. 8x-x^2-13