Bonjour !
I = (2x + 3)(x + 1) + (5x - 3)
I = 2x*x + 3*x + 2x*1 + 3*1 + 5x - 3
I = 2x² + 3x + 2x + 3 + 5x - 3
I = 2x² + 10x
J = (y - 6)(4y - 11) - (1 - 35y)
J = y*4y - 6*4y - 11*y - 6*(-11) - 1 + 35y
J = 4y² - 24y - 11y + 66 - 1 + 35y
J = 4y² + 65
J'espère t'avoir aidé. Bon courage !
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Bonjour !
I = (2x + 3)(x + 1) + (5x - 3)
I = 2x*x + 3*x + 2x*1 + 3*1 + 5x - 3
I = 2x² + 3x + 2x + 3 + 5x - 3
I = 2x² + 10x
J = (y - 6)(4y - 11) - (1 - 35y)
J = y*4y - 6*4y - 11*y - 6*(-11) - 1 + 35y
J = 4y² - 24y - 11y + 66 - 1 + 35y
J = 4y² + 65
J'espère t'avoir aidé. Bon courage !
=2x^+2x+3x+3+5x-3
=2x^+10x
J=(y-6)(4y-11)-(1-35y)
=4y^-11y-24y+66-1+35y
=4y^+66