Msquared-49/7 multiply by 56/Msquared-6M-7

Please simplify for me with working please
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1 Answer

49/7=7

& x^2-6x-7=(x-7)*(x+1)

so yu hav 56*(x^2-7) /[(x+1)*(x-7)]

x^2-7=[x-sqrt(7)]*[x+sqrt(7)]...sqrt(7)=2.645751311
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