exam Maths Puzzle Numerical Ability

6=4x-x+9

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exam Other Question

hello, can you help me to solve this question?
x^2+9>0
thank you Please help, it says to solve by completing the square.
x^2-3x+1=0
What I got for this was x-2 x+8 2-83
I am not so sure about my answer, please help! Thank You=)