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earslan100Best ResponseYou've already chosen the best response.0
what times what equals 24 and those same numbers have to add upto 10
 one year ago

henpenBest ResponseYou've already chosen the best response.1
\[x^2+10x=(x+5)^225\] Do you understand this?
 one year ago

earslan100Best ResponseYou've already chosen the best response.0
no 4 and 6 when u multiply its 24 not 24
 one year ago

earslan100Best ResponseYou've already chosen the best response.0
srry it has to multiply to 24
 one year ago

henpenBest ResponseYou've already chosen the best response.1
... or we could actually help him with the mechanics of the question
 one year ago

earslan100Best ResponseYou've already chosen the best response.0
so the answer is (x2)(x+10)
 one year ago

earslan100Best ResponseYou've already chosen the best response.0
if you multiply using foils u can see it equals the question
 one year ago

henpenBest ResponseYou've already chosen the best response.1
Really, that's not completing the square.
 one year ago

henpenBest ResponseYou've already chosen the best response.1
http://en.wikipedia.org/wiki/Completing_the_square Needs to be in the form (x+k)^2=c
 one year ago

henpenBest ResponseYou've already chosen the best response.1
Okay, @lizzy87 , do you understand why\[x^2+10x=(x+5)^225\]?
 one year ago

lizzy87Best ResponseYou've already chosen the best response.0
how didi you get the 5?
 one year ago

henpenBest ResponseYou've already chosen the best response.1
dw:1346521462011:dw Because 2x5=10
 one year ago

henpenBest ResponseYou've already chosen the best response.1
And if you take away 25 and cancel the 2 5x's into one 10x, that happens.
 one year ago

lizzy87Best ResponseYou've already chosen the best response.0
oh ok see how you got that thanks
 one year ago

henpenBest ResponseYou've already chosen the best response.1
\[x^2+10x=24\] \[x^2+10x=(x+5)^225\] Therefore\[24=(x+5)^225\] and\[49=(x+5)^2\]
 one year ago

henpenBest ResponseYou've already chosen the best response.1
1 Did you understand that 2 What do you think we could do now to simplify?
 one year ago
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