The answer depends on the value of y. For example, when y = 0, 8y2 + 6y - 2 = -2 when y = 1, it is 12
If y = 10, then -8y2 = -8(10)2 = -800.
y += x means the value y+x is first calculated, and the resulting value is then assigned to y. It is equivalent to y = y+x
The answer depends on the value of y.
Y = 2
x = 14
The value of Y in the equation 4-y plus 6 = 45 is -35.
The value of x + y is indeterminate. You need the values of both x and y to determine x + y.
(1/x) + (1/y) + (1/z) is a minimum value when x=y=z=10. Symmetry gives either maximum or minimum value.
That depends on the value of y.
This constant has the Y intercept value.
I feel like there is something wrong with your question because subtracting y2 on both sides leaves you with 8y=0; then, y=0