exam Maths Puzzle Numerical Ability

can you help me with this problem please.

x^2 + 12x + 36 = 0

thank you
julie and have a happy new year

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exam Other Question

Please help.

An employee who produces x units per hour earns an hourly wage of

y = 0.65x + 12 (in dollars).

Find the hourly wage for an employee who produces 2 units per hour.

Thanks
JMS evaluate
(1/3)^2 + 1/4 - (4/3)^2 * (1/2)^3
1/9 + 1/4 - 16/9 * 1/8
1/9 + 1/4 -128/72 + 9
1/9 + 1/4 - 137/72

I tried to do it myself. Would you please check my work?
Thank you very much!!