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f:R-R f(x)=-6x+3
calculati f(-2)+f(2)=?


Răspuns :

f(-2)=-6*(-2)+3=15
f(2)=-6*2+3=-9
f(-2)+f(2)=-9+15=6
f(-2)= 15 
f(2)= -9
f(-2)+f(2) = 15+(-9) = 6