exam Maths Puzzle Numerical Ability

Find the sum of 3-2x-5xsquared and 7xsquared-4 in simplest form.

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exam Other Question

-4-(3+6m)=1/2(4+2m)

Not in a text book. Not sure what to do when you subtract for the distributive property Im used 2 multiplication equations. Can you show all steps to help me? write an equation for the circle that satifies each set of conditions.
center (-1,-5), radius of