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MatthieucolombxFeiax
@MatthieucolombxFeiax
April 2019
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Je n'arrive pas a faire cette équation:
-20x² -36x -16 = 0
Pouvez-vous m'aider svp ?!
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loy
-20ײ-36×-16=0
Δ=(-36)²-4×-20×-16
=1296+80×-16
=1296-1280
=16≥0
x1= 36-√16/2×-20=32/-40=-4/5
x2=36+√16/2×-20=40/-40=-1
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Δ=(-36)²-4×-20×-16
=1296+80×-16
=1296-1280
=16≥0
x1= 36-√16/2×-20=32/-40=-4/5
x2=36+√16/2×-20=40/-40=-1