evaluate the polynomial for x=4 and for x=-4 for the expression 2x^2-4x+7?

+1 vote
asked Dec 23, 2012 in Algebra by anonymous
    

1 Answer

0 votes
x= 4
 
2x^2 - 4x + 7
=>2(4)^2 - 4(4) + 7
=>23 ans
 
x = - 4
 
=>2(-4)^2 - 4(-4) + 7
=>55 ans
 
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answered Jun 22, 2013 by answermachine ~Rookie~ (120 points)
edited Jun 22, 2013 by answermachine



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