Solve by completing the square. 9x = 3x^2 - 1

0 ≠ -1

x =(-9-√93)/-6=3/2+1/6√ 93 = 3.107

x =(-9+√93)/-6=3/2-1/6√ 93 = -0.107

Step-by-step explanation:

9x = 3x^2 - 1

first, lets simplify the 3x^2 to get 9x

now we have 9x = 9x - 1 right?

we are going to take 9x from both sides which leaves up with 0x = -1

which does not work in this equation.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)