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Factoriser
C(x) = 4x² - 12x + 9
D(x) = 4x² + 2x + 1/4
E(x) = ( x² - 4 ) + x( x+2 )
F(x) = ( x - 1 )² - 4(x - 1 ) + 4
merci à l'ame charitable qui m'aideras :)
Factoriser
C(x) = 4x² - 12x + 9
D(x) = 4x² + 2x + 1/4
E(x) = ( x² - 4 ) + x( x+2 )
F(x) = ( x - 1 )² - 4(x - 1 ) + 4
merci à l'ame charitable qui m'aideras :)
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Δ=b²-4ac=(-12)²-4(4)(9)=144-144=0
x₁=(-b-√Δ)/2a=(12-0)/8=3/2
x₂=(-b+√Δ)/2a=(12+0)/8=3/2
d'ou C(X)=(x-3/2)(x-3/2)