exam Maths Puzzle Numerical Ability

Simplify the expression -42p divided by -1/7

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exam Other Question

factor completely:
x^2 -6wy +3xy - 2wx

The w is throwing me off somehow. Please Help!

Thank you If f(x)=x(x+3)(x-1), use the interval notation to give all values of x where f(x)>0.