Explications étape par étape:
f(x) = [(x×2x) +(x×10) -(3×2x)-(3×10)] - [(x×x)+(x×4) -(3×x)-(3×4)]
f(x) = [ 2x² + 10x - 6x - 30] -[x² + 4x - 3x - 12]
f(x) = 2x² + 4x - 30 - x² - x + 12
f(x ) = x² + 3x - 18
On met (x - 3) en facteur commun.
f(x) = (x - 3)[ (2x + 10) - (x + 4)]
f(x) = (x - 3)( 2x + 10 - x - 4)
f(x) = (x - 3)(x + 6)
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Explications étape par étape:
f(x) = [(x×2x) +(x×10) -(3×2x)-(3×10)] - [(x×x)+(x×4) -(3×x)-(3×4)]
f(x) = [ 2x² + 10x - 6x - 30] -[x² + 4x - 3x - 12]
f(x) = 2x² + 4x - 30 - x² - x + 12
f(x ) = x² + 3x - 18
On met (x - 3) en facteur commun.
f(x) = (x - 3)[ (2x + 10) - (x + 4)]
f(x) = (x - 3)( 2x + 10 - x - 4)
f(x) = (x - 3)(x + 6)