[timed i need sunil is solving the quadratic equation by completing the square. 6x^2 + 24x + 5 = 0 6x^2 + 24x = -5 what should sunil do next? a) isolate the variable x2. b) isolate the constant. c) factor 6 out of the variable terms. d) subtract 24x from both sides of the equation.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204