Simplify the polynomial in standard form (3x-4x2+8x3)+(-6x+2x4-5x2)

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Find the area of the unshaded square

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x