ULTUUSU U SCUOI12. Find the roots of the quadratic polynomial x2 -2X-8 – InterviewSolution

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ULTUUSU U SCUOI12. Find the roots of the quadratic polynomial x2 -2X-8

Answer»

x^2-2x-8=x^2-4x+2x-8=0; x( x-4)+2( x-4)=0; (x-4)( x+2)=0; x=4, -2

x^2-2x-8=0; x^2-4x+2x-8=0 x( x-4)+2(x-4)=0 ( x+2)( x-4)=0 x=-2, 4

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