factorise : 10a ( 2p + q )³ - 15b ( 2p + q )² +35 ( 2p + q )
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Step-by-step explanation:
= 10a(2p+q)³- 15b(2p+q)² + 35(2p+q)
= 5 [2a(2p+q)]³ - 3b(2p+q)² +7(2p+q)]
= 5 (2p+q) [2a(2p+q)² − 3b(2p+q)+7]
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