busybee1123
busybee1123
03-06-2018
Mathematics
contestada
How do I solve this?
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thomaslaterica1
thomaslaterica1
03-06-2018
Does this have something to do with the radius ?
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KyngOyinda
KyngOyinda
03-06-2018
r²+10r+21
r²+3r+7r+21=0
r(r+3)+7(r+3)=0
(r+7)(r+3)=0
r+7=0. Or r+3=0
r=-7. Or r=-7
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