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II-A homework 2.27

 
 
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II-A homework 2.27
by Bober Yang - Saturday, 13 June 2020, 9:41 AM
 

I don't know what technique I need to use on this problem can I get some help?


Thank you!

 
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Re: II-A homework 2.27
by Areteem Professor - Tuesday, 16 June 2020, 11:15 PM
 

Try expanding $a(x+x_1)^2 + b(x+x_1)^2 +c$. Remember that $x_1$ is a solution of $ax^2 + bx + c = 0$, so $ax_1^2 + bx_1 + c = 0$. Try using this to simplify the expression obtained by expanding the second polynomial. You may want to use Vieta's formulas to find the final answer.