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anonymous
 4 years ago
What is the value of k?
3x + 7 = x2 + k = 7x + 15
anonymous
 4 years ago
What is the value of k? 3x + 7 = x2 + k = 7x + 15

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0too many equal signs?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0That's the problem my teacher gave me.. ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay, we can take the first and last equations 3x + 7 = 7x + 15 solve for x x = 2 and use this to solve for k

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Note 7x + 15 = 7(2) + 15 = 1 Therefore 1 = x^2 + k or 1 = 4 + k so k = 3 QED

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.13(2)+7=(2)^2+(3)=7(2)+15 1=1=1 fine maybe it is true lol

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Lol, thanks guys. ^_^
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