exam Maths Puzzle Numerical Ability

What is the value of log 1000 + 2log3 9-log5 125? Where 3 and 5 are the base perspectively.

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(c^+3c-4)-(5c^+3c-1) please help me solve and simplify. Also, (x+4)(x^-3x+7) Please help me solve this equation: a playground is 25m x 40m. it is surrounded by a paved skating path of uniform width. the area of the playground and path is 1,426 square meters