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15 votes
Factorise 18u²-50y completely.​

User Mark Kelly
by
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1 Answer

2 votes

Answer:


2(3u + 5 √(y) )(3u - 5 √(y) )

Explanation:


18 {u}^(2) - 50y \\ \\ = 2[9 {u}^(2) - 25y] \\ \\ = 2[(3 {u})^(2) - (5 √(y) )^(2) ] \\ \\ = 2(3u + 5 √(y) )(3u - 5 √(y) )

User Nathan Roberts
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