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Help please!

NotSoSmart  Nov 20, 2017

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 #1
avatar+5573 
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We want to find the values of  x  that make  y  equal zero.

 

We want to find what  x  values make this equation true:

 

0  =  x2 + 2x - 8            The right side factors like this....

 

0  =  (x + 4)(x - 2)         Set each factor equal to zero and solve for  x .

 

x + 4  =  0          or          x - 2  =  0

     x  =  -4          or                x  =  2

 

The zeros are  -4  and  2 .

hectictar  Nov 20, 2017
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1+0 Answers

 #1
avatar+5573 
+1
Best Answer

We want to find the values of  x  that make  y  equal zero.

 

We want to find what  x  values make this equation true:

 

0  =  x2 + 2x - 8            The right side factors like this....

 

0  =  (x + 4)(x - 2)         Set each factor equal to zero and solve for  x .

 

x + 4  =  0          or          x - 2  =  0

     x  =  -4          or                x  =  2

 

The zeros are  -4  and  2 .

hectictar  Nov 20, 2017

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