exam Maths Puzzle Numerical Ability

You are to estimate the measure of the angle created by the hour and minute hands on the clocks and classify the angle as being acute, straight, right or obtuse:
9:00 Estimate:

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exam Other Question

Factor the greatest common factor: 4a2 xy4 p-6a2 x4


Thank you!
4x2+64=32x

Im really confused and I have to solve this by factoring.