exam Maths Puzzle Numerical Ability

6x^2-2(5x-2x(3x+1))

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exam Other Question

Multiply, using the vertical method
(2r - 3s) (4rē+ 6rs +9sē)
In a town election, the winning candidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each candidate recieve?