what would be the equation after completing the square and factoring?
x^2+5x+8=4
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OpenStudy (x3_drummerchick):
first set the equation equal to 0 by subtracting 4 \[x ^{2} + 5x + 4\]
OpenStudy (anonymous):
ok whats next?
OpenStudy (x3_drummerchick):
factoring
OpenStudy (anonymous):
it would be \[x=-4,-1\]
OpenStudy (x3_drummerchick):
(x + 4 ) ( x + 1 )
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OpenStudy (x3_drummerchick):
correct
OpenStudy (x3_drummerchick):
because you're setting both (x+4)= 0 and (x+1)=0
OpenStudy (anonymous):
yea but how would you write the equation
OpenStudy (anonymous):
because first you need to complete the square and then factor and when that is done you have to write it in an equation
OpenStudy (x3_drummerchick):
was the question said to write the equation, then complete the square and factoring?
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OpenStudy (anonymous):
no it said what would be the equationafter competing the square and factoring \[x^2+5x+8=4\]
zepdrix (zepdrix):
So when drumchica got to (x+4)(x+1)=0, that's where you would stop.
That is the factored form they're looking for.
Are you having any trouble understanding the steps up to that point?