simplifing X(x/2 + (piex/2)/2 - 10)

[ca.chick]

so im supposed to simplify this part of the equation and i am not sure how to do it:

X(x/2 + (piex/2)/2 - 10)

i got how to do the first and the last part, but the middle i dont really now how to do that one. please help me

 

[tkhunny]

Great. Show us what you have for the first part and the last part and let's see where that leads.

Standard Clue: "Pie" is for eating. "Pi" is for mathematics.

 

[ca.chick]

so i got x^2/2 + (this is what i dont know: x((pix/2)/2) ) and then -10x

 

[Denis]

Did you realise that (pi x / 2) / 2 = pi x / 4 ?