DRAx+4x-7-30 ,4, – InterviewSolution

InterviewSolution

1.	DRAx+4x-7-30 ,4,
Answer» x-7-(x+4)/(x-7)(x+4)=11/3030(-11)=11(x²-3x-28)x²-3x-28+30=0x²-3x+2=0x²-x-2x+2=0x(x-1)-2(x-1)=0(x-1)(x-2)=0x=1,2

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