exam Maths Puzzle Numerical Ability

(7X 3 - 2X 2 + 4X - 1) - (9X 3 - 4X 2 + X - 3) + (2X 3 - 2X 2 - 3X -2).

Please show me how to solve. Thanks!

Read Solution (Total 0)

exam Other Question

add

x^2/x-5+
4x-45/x-5

Thank you a boat travels 50km downstream in the same time that it takes to go 30km upstream. The speed of the boat in still water is 16 km/h. Find the speed upstream.