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anonymous
 3 years ago
How to solve X^2+10x=24 by completing the square.
anonymous
 3 years ago
How to solve X^2+10x=24 by completing the square.

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0what times what equals 24 and those same numbers have to add upto 10

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[x^2+10x=(x+5)^225\] Do you understand this?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0no 4 and 6 when u multiply its 24 not 24

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0srry it has to multiply to 24

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0... or we could actually help him with the mechanics of the question

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so the answer is (x2)(x+10)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0if you multiply using foils u can see it equals the question

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Really, that's not completing the square.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0http://en.wikipedia.org/wiki/Completing_the_square Needs to be in the form (x+k)^2=c

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Okay, @lizzy87 , do you understand why\[x^2+10x=(x+5)^225\]?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0how didi you get the 5?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1346521462011:dw Because 2x5=10

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1346521508364:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0And if you take away 25 and cancel the 2 5x's into one 10x, that happens.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1346521563679:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0oh ok see how you got that thanks

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[x^2+10x=24\] \[x^2+10x=(x+5)^225\] Therefore\[24=(x+5)^225\] and\[49=(x+5)^2\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.01 Did you understand that 2 What do you think we could do now to simplify?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[\pm \sqrt{49}=x+5\]
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