savarago99 savarago99

30-01-2017
Mathematics

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what is x if y Is 5
x^2 (2y +5)=240

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apologiabiology apologiabiology

30-01-2017

x^2(2y+5)=240
x^2(2(5)+5)=240
x^2+(10+5)=240
x^2+15=240
minus 15 both sides
x^2=225
sqrt both sides
x=15

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