(x - 2) (2x - 5) - (2x² - 8x + 11) = 0
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Step-by-step value of x=-1
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(2x^2-5x-4x+10)-(2x^2-8x+11)=0
2x^2-9x+10-(2x^2-8x+11)=0
2x^2-9x+10-2x^2+8x-11=0. (+2x^2 and -2x^2 gets cancelled)
-x-1=0
x= -1
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