Bonsoir, factoriser a (x)=(x+3)^2-9(x-1)^2
Trouver forme canonique et factoriser de f (x)=3x^2-13x+14
Merci d'avance.
Trouver forme canonique et factoriser de f (x)=3x^2-13x+14
Merci d'avance.
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=(x+3-3(x-1))(x+3+3('x-1))
=(x+3-3x+3)(x+3+3x-3)
=(-2x+6)(4x)
=(8x)(3-x)
f(x)=3x²-13x+14
=3(x²-13/3x)+14
=3((x-13/6)²-169/36)+14
=3(x-13/6)²-1/12