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f(x)=3x-0.2x² = x(3-0.2x)
1) f(-15)= -15(3-0.2*15)= -15(3-3)=0
2) f(0.2)= 0.2(3-0.2*0.2)=0.2*2.96=0.592
3) f(2/3)=2/3 (3-0.2*(2/3))=2/3 (3 - (1/5)*(2/3))=
=2/3 (3 - 2/15) =2/3 * (43/15) =86/45 = 1 ⁴¹/₄₅
1) f(-15)= -15(3-0.2*15)= -15(3-3)=0
2) f(0.2)= 0.2(3-0.2*0.2)=0.2*2.96=0.592
3) f(2/3)=2/3 (3-0.2*(2/3))=2/3 (3 - (1/5)*(2/3))=
=2/3 (3 - 2/15) =2/3 * (43/15) =86/45 = 1 ⁴¹/₄₅
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