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what is y=x2−2 and y=−x+4 solutions 

 May 10, 2020
 #1
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what is y=x2−2 and y=−x+4 solutions  

 

y = y so you can set the equivalents equal 

 

                                                    x2 – 2 = x + 4 

 

subtract x + 4 from both sides      x2 – x – 6 = 0   

 

factor the quadratic                      (x + 2)(x – 3) = 0 

 

                                                     x = –2  and  x = 3 

.

 May 10, 2020
 #2
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Darn it, I missed a sign when I started the answer. 

 

It should be:  

 

y = y so you can set the equivalents equal 

 

                                                       x2 – 2  =  x + 4 

 

subtract  x + 4 from both sides      x2 + x – 6  =  0   

 

factor the quadratic                         (x 2)(x + 3)  =  0 

 

                                                        x = +2  and  x = –3 

.

 May 10, 2020

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