Solve 2sin^2x=sinx, if 0

This question awards 100 ! i really don’t want to fail i will also mark you !

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

What are the exclude value of mn+3m