book
Maths Puzzle
Numerical Ability
can someone show me how to answer these two problems, thanks...
factor the sums or differences of two cubes..
b^3-8
x^3+8
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book Other Question
3/(x+1)-1/(1-x)=10/(x^2-1)
use the discriminant to determine whether(((x^2-6x=-15)))has one real solution, two real number solutions or two complex number solutions