algebra q's - XP Math - Forums

 XP Math - Forums algebra q's

 11-10-2007 #1 Mr. Guest   Posts: n/a algebra q's 1.(x+2)(x-5)=(x-1)(x-3) 2.(x-3)(x+7) - (x+1)(x+5)=0 Please answer all problems by Monday 7:00 A.M.
11-10-2007   #2
Mr. Hui

Join Date: Mar 2005
Posts: 10,609

Quote:
 Originally Posted by Mr. 1.(x+2)(x-5)=(x-1)(x-3) 2.(x-3)(x+7) - (x+1)(x+5)=0 Please answer all problems by Monday 7:00 A.M.
1.
$(x+2)(x-5)=(x-1)(x-3)$
${x^2}-3x-10={x^2}-4x+3$
$x=13$
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11-10-2007   #3
Mr.
Guest

Posts: n/a

Quote:
 Originally Posted by Mr. Hui 1. $(x+2)(x-5)=(x-1)(x-3)$ ${x^2}-3x-10={x^2}-4x+3$ $x=13$
Appreciable

 11-10-2007 #4 Mrs. Guest   Posts: n/a u talk 2 fancy
 11-10-2007 #5 Mr. Guest   Posts: n/a This is appropriate enternet speech so dont disapprove
 11-10-2007 #6 Temperal Guest   Posts: n/a 2) $(x-3)(x+7) - (x+1)(x+5)=0$ $\Rightarrow x^2+4x-21 - x^2-6x-5=0$ $\Rightarrow 4x-21-6x-5=0$ $\Rightarrow -2x-26=0$ $\Rightarrow -2x=26$ $\Rightarrow x=-13$ Also, Mrs. is one of your double accounts by IP address, and has been banned.

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