y = 10 - 2 x^2
y = 2*( 5 - x^2) = 2*( p(5) - x)*( p(5) + x)
======================================
p(5) - pierwiastek kwadratowy z 5
-----------------------------------------
y = ( 1/3) x^2 + (1/6) x
y = ( 1/3) x *( x + 1/2)
===========================
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y = 10 - 2 x^2
y = 2*( 5 - x^2) = 2*( p(5) - x)*( p(5) + x)
======================================
p(5) - pierwiastek kwadratowy z 5
-----------------------------------------
y = ( 1/3) x^2 + (1/6) x
y = ( 1/3) x *( x + 1/2)
===========================