SVP URGENT MERCI A LA PERSONNE QUI POURRA M'AIDER.... Pergunta de ideia deprissou73

June 2021 1 72 Report

SVP URGENT MERCI A LA PERSONNE QUI POURRA M'AIDER

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MichaelS

Verified answer

A = -2 + x(-5x + 7)
A = -2 - 5x² + 7x
A = -5x² + 7x - 2

B = (x-1)(-5x + 2)
B = -5x² + 2x + 5x - 2
B = -5x² + 7x - 2

C = x(-5x + 5) + 2(x-1)
C = -5x² + 5x + 2x - 2
C = -5x² + 7x - 2

D = -5x(x-2) - (3x + 2)
D = -5x² + 10x - 3x - 2
D = -5x² + 7x - 2

$A = \frac{3}{8} - \frac{5}{2} + \frac{1}{6}\\ A = \frac{18}{48} - \frac{120}{48} + \frac{8}{48}\\ A = \frac{-94}{48} = \frac{-47}{24}$

$B = \frac{5}{3} + 1 - \frac{1}{2}
\\B = \frac{10}{} + \frac{6}{6} - \frac{3}{6}
\\B = \frac{13}{6}$

$C = \frac{6}{7} + ( \frac{3}{7})( \frac{1}{2})
\\C = \frac{6}{7} + \frac{3}{14}
\\C = \frac{12}{14} + \frac{3}{14}
\\C = \frac{15}{14}$

$D = \frac{4}{3} + \frac{1}{5} + \frac{4}{5}
\\ D = \frac{4}{3} + 1
\\D = \frac{4}{3} + \frac{3}{3}
\\D = \frac{7}{3}$

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prissou73 mrc mais ducoup j'ai reussi mais mrc quand meme