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The roots of Ax^2+Bx+1 are the same as the roots of x^2- 3x + 5 + x^2 - 2x + 1. What is A+B?

 Jul 22, 2025
 #2
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-1/2

x^2+x^2-3x-2x+5+1=2x^2-5x+6

we divide that by six so the constant term is the same:1

(2x^2-5x+6)/6=1/3x^2-5/6x+1

so now we know A=1/3, B=-5/6

A+B=1/3-5/6=-1/2

 
 Jul 25, 2025
edited by bqimath  Jul 25, 2025

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