1Oblicz wartość wielomianu -3x^3+2x^2-5x+1
2Wykonaj działanie (3x-8)-[(x+2)(3x^2-x+2)]
2) (3x-8)-[(x+2)(3x²-x+2)]=3x-8-(3x³-x²+2x+6x²-2x+4)=3x-8-(3x³+5x²+4)=
= 3x-8-3x³-5x²-4=-3x³-5x²+3x-12
1) nie podales dla jakiego x
W(1)=-3+2-5+1=-5
W(-1)=3+2+5+1=11
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1.
np wartość tego wielomianu dla x = 1 wynosi
-3 * 1³ + 2 * 1² - 5 * 1 + 1 = -3 * 1 + 2 * 1 - 5 + 1 = -3 + 2 - 5 + 1 = -8 + 3 = -5
2.
(3x - 8) - [(x + 2)(3x² - x + 2)] = 3x - 8 - (3x³ - x² + 2x + 6x² - 2x + 4) =
3x - 8 - (3x³ + 5x² + 4) = 3x - 8 - 3x³ - 5x² - 4 = -3x³ - 5x² + 3x - 12
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2) (3x-8)-[(x+2)(3x²-x+2)]=3x-8-(3x³-x²+2x+6x²-2x+4)=3x-8-(3x³+5x²+4)=
= 3x-8-3x³-5x²-4=-3x³-5x²+3x-12
1) nie podales dla jakiego x
W(1)=-3+2-5+1=-5
W(-1)=3+2+5+1=11
========================================================
1.
np wartość tego wielomianu dla x = 1 wynosi
-3 * 1³ + 2 * 1² - 5 * 1 + 1 = -3 * 1 + 2 * 1 - 5 + 1 = -3 + 2 - 5 + 1 = -8 + 3 = -5
2.
(3x - 8) - [(x + 2)(3x² - x + 2)] = 3x - 8 - (3x³ - x² + 2x + 6x² - 2x + 4) =
3x - 8 - (3x³ + 5x² + 4) = 3x - 8 - 3x³ - 5x² - 4 = -3x³ - 5x² + 3x - 12