exam Maths Puzzle Numerical Ability

How do I simplify this 1/x - 1/b over 1/xb + 1/2

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exam Other Question

Please help me and could you please show the graphs THANKS a million

1) Solve the following equations.
a) sqrd x - 1 = 3
Answer:

Show work in this space.




b)s
[ 10 5 18]
[ 4 -15 -5]
[ 1 8 0 ]

[ -7 2 -14]
[ 17 3 -13]
[ 16 15 10]





A [-30 10 -15 -