exam Maths Puzzle Numerical Ability

7.1x-2.0=2.2x-10.5

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exam Other Question

please help me solve this equation. find the area of a triangle with a base 3.25 cm and a height of 4.5cm 1. Factor by grouping:

a. 5r^2+15rs-2rs-6s^2

b. 10p^3-2p^2q^2-5pq+q^3