exam Maths Puzzle Numerical Ability

2
- x = -14
3

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exam Other Question

Tutor could you please help me to simplify the following?

12x^2+4x-1/2x+1

and

x^2+3x-4/x^2-x-20

Thank You Find the inverse of this function, and state the domain and range of both the original function and the inverse: F(x) = sqrt(2x-3)