Bonjour
développer et réduire ces expressions.
f(x)=3x(x²-5x+4)+4(3x²+2²-5)
f(x) = 3x^3 - 15x² + 12x + 12x² + 16 - 20
f(x) = 3x^3 - 3x^2 + 12x - 4
g(a)=4a(a-3)-2a(8a+7)
g(a) = 4a² - 12a - 16a² - 14a
g(a) = -12a² - 26a
h(y)=(36y-12)(y-1)+1
h(y) = 36y² - 36y - 12y + 12 + 1
h(y) = 36y² - 48y + 13
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Bonjour
développer et réduire ces expressions.
f(x)=3x(x²-5x+4)+4(3x²+2²-5)
f(x) = 3x^3 - 15x² + 12x + 12x² + 16 - 20
f(x) = 3x^3 - 3x^2 + 12x - 4
g(a)=4a(a-3)-2a(8a+7)
g(a) = 4a² - 12a - 16a² - 14a
g(a) = -12a² - 26a
h(y)=(36y-12)(y-1)+1
h(y) = 36y² - 36y - 12y + 12 + 1
h(y) = 36y² - 48y + 13