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Maths Puzzle
Numerical Ability
I am not sure how to solve this one
ln (square root of x +4) =1
and
log base 2 (x-3) + log base 2x - log base 2 (x+2) =2
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book Other Question
find the solution set:
x^2 + y^2 = 8 and 16x + 4y^2 = 80
how can i soved this equation? coz I keep on solving it but i can't:
[(x^5-3x)+(3x^2-1)][(x^5-3x)-(3x^3-1)]