exam Maths Puzzle Numerical Ability

Could you please help me solve this equation?

2x^2-x-9/(x+1)(x^2+5)=A/x+1+Bx+C/x^2+5

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exam Other Question

Tell wether the number is prime or composite. If it is composite,write its prime factorization.

7.163

Any help with this equation would be GREATLY appreciated. Solve:

1 x 10-8
________
4 x 10 7