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Find all values of x such that 3x^2 + 14x + 8 = x^2 + 26x + 10.  If you find more than one value, then list your solutions, separated by commas.

 Apr 28, 2023
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Find all values of x such that 3x^2 + 14x + 8 = x^2 + 26x + 10.  If you find more than one value, then list your solutions, separated by commas. 

 

 

Just solve for x          3x2 + 14x + 8  =  x2 + 26x + 10  

 

                                 2x2 – 12x – 2  =  0    

 

                                 This won't factor, so you have to use the quadratic formula. 

 

                                  I can't write down the symbols for the quadratic formula. 

 

                                  I graphed it and the roots are approximately –0.2 and +6.2  

 Apr 28, 2023

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