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Find x: x(2x-7)-4x+14=0

 Sep 27, 2015
 #1
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Find x: x(2x-7)-4x+14=0

 

x=2 and x=7/2

 Sep 27, 2015
 #2
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+5

x(2x-7)-4x+14=0   simplify

 

2x^2 - 7x - 4x + 14 = 0

 

2x^2 - 11x + 14 = 0   factor

 

(2x  - 7  )    (x - 2)  = 0     and setting each factor equal to 0, we have

 

x = 2/7    and x = 2

 

 

cool cool cool

 Sep 27, 2015
 #3
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CPhill: Minor correction. Your first value of x=7/2 not 2/7

 Sep 27, 2015

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