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How to solve -x^2-2x=5
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How to solve -x^2-2x=5
asked
Nov 19, 2017
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How to solve -x^2-2x=5
Mathematics
high-school
Legotin
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Legotin
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2
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3
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I hope this helps you
Paul McCabe
answered
Nov 19, 2017
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Paul McCabe
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6
votes
Let's solve your equation step-by-step.
−
x^2
−
2x
=5
Step 1: Subtract 5 from both sides.
−
x^2
−
2x
−5
=
5−5
−
x^2
−
2x
−5
=0
Step 2: Use quadratic formula with a=-1, b=-2, c=-5.
x=(
2±
√
−16)/
−
2
Rajitha Perera
answered
Nov 22, 2017
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Rajitha Perera
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