Posted by ariyonia on Tuesday, November 2, 2010 at 3:00pm.
(x-4)(x+1)
i tried that one it doesn't work because that equals x2-3x-4 I need x2-3x+4
Sorry she made a mistake you need to use the quadratic formula which you can find on youtube.
will that help me to factor the equation because I did it and I got 3+ or - 5i all over 2 and that's not going to help me factor the equation
Well, it does.
x= -b+-sqrt(b^2-4ac) /2
x=3/2 +- 1/2 sqrt (9-16)
x= 1.5 +-i/2 sqrt7
(x-1.5+isqrt7/4)(x-1.5-isqrt7/4)
check that.
Unless the expression was
x²-4x+3
which you can factor.
Check the question.
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