exam Maths Puzzle Numerical Ability

Can someone help me solve this equation please?

9x^2=14

Thank you.

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exam Other Question

I need to find the line passing through (1,42) and (17,314). I am not even sure how to plug this in to my calculator. I do not know what order to take to break this down. Please help me solve for x.

a. e^in(3-2x) =5x b. In x - In 2 = 1