book Maths Puzzle Numerical Ability

Simplifying Rational Expression

x^2 - 3x - 10/x^2 - x - 20

Read Solution (Total 1)

0.5((x^2-3x-10/x^2-x-20)=(x-5)x+4)/(x-5)(x+4))where x=0
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book Other Question

i=sqrt(p/r) if p=500 ,r=25. would that make the answer 20 ? Factor completely
16x^2 - 2x - 3