factorise 10 (3x + 1/x )2 - ( 3x + 1/x )
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Answered by
2
Step-by-step explanation:
(57x² + 21) / x
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Answered by
2
Answer:
= 60x + 20/x - 3x + 1/x = 0
=60+20-3+1 = x×x/x×x
=78
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