exam Maths Puzzle Numerical Ability

Solve by using the quadratic formula:

9z squared + 12z + 4 = 0

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exam Other Question

2log base3(x+4)=log base 3 9+2
solve for x Graph each solution: A: |x|>5 B: |x-3|>5 C: |x+3|>5

Please help me solve this...thank you.