Question

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văroggggggggggg ajutțimăăăăăăăăăăăă ex.2

Answer 1

P(X)=-X²-3+4X²-6X+3+X
a)forma canonica
3x²-5x
b)grad
functie de gradul al doilea
c)3x²-5x=0
a=3
b=-5
c=0
Δ=b²-4ac⇒Δ=(-5)²-4×3×0⇒Δ=25-0⇒Δ=25⇒√Δ=√25⇒Δ=5
x1x2=-b+-√Δ|2a⇒
x1=5+5|2×3⇒10|6⇒x1=5|2
x2=5-5|6⇒x2=0|6⇒x2=0
succes

Answer 2

P(X)=-X²-3+4X²-6X+3+X
a)forma canonica
3x²-5x
b)grad
functie de gradul al doilea
c)3x²-5x=0
a=3
b=-5
c=0
Δ=b²-4ac⇒Δ=(-5)²-4×3×0⇒Δ=25-0⇒Δ=25⇒√Δ=√25⇒Δ=5
x1x2=-b+-√Δ|2a⇒
x1=5+5|2×3⇒10|6⇒x1=5|2
x2=5-5|6⇒x2=0|6⇒x2=0
succes