We cannot use factoring for 1 if it''s -14
for #2 the answer is x= -7 and x= 4 hope it can help :)
i think its not -14..
i think so too. If it really is -14, there is no way to solve it by factoring
I also solved it by -14 , but there's no solution... just ignore number 1

Answers

2014-06-26T08:58:12+08:00

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1)        x² +14 = 15x
   
x² -15x +14 = 0
     (x-14) (x-1) = 0
    x=14  ;  x=1                    (this will be the answer if the given is +14 and not -14)

2)      2x² -3x = 14
   
2x² -3x -14 = 0
   (2x-7) (x+2) = 0
   x=7/2  ;  x=-2 
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