chalynscott30 chalynscott30

22-08-2017
Mathematics

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What are the roots of the equation y=x^2 -5x-24

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kphung76127 kphung76127

22-08-2017

Factor
(x-8)(x+3)

Check:
-8+3=-5
-8*3=-24

Use ZPP
x-8=0
x=8

x+3=0
x=-3

Final answer: x=-3, x=8

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