exam Maths Puzzle Numerical Ability

Subtract:
6p - w __ 4c + p
w - 4 w - 4

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exam Other Question

Hi,
Can you help me with this math problem?

19.) Rewrite the expression as a single logarithm.

2 log4 (2x+3)+3 log4 (4x+4)

The answer should be log4(2x+3)^2(4x+4)^3
Factor completely.
49x^2 - 9