(3x3 + 2x² + 10) + (3x3 + 2x2 + 10x)

(3x  3 +2x  2  +5x+5)

Step-by-step explanation:

(3x3 + 2x^2 +10) +(3x3 +2x2 +10x)

(9 + 2x^2 +10) +(9+4+10x)

(19+2x^2) +(13 +10x)

now opening the brackets

19 +13 +2x^2 +10x

2x^2 + 10x +32

taking 2x common

2x(x+5) +32

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

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