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Verified answer
4√5 + 2√3 - 2√5 + 7√3= 4√5 - 2√5 + 2√3 + 7√3
= 2√5 + 9√3
Verified answer
4√5 + 2√3 - 2√5 + 7√3= (4√5 - 2√5) + ( 2√3 + 7√3)
= (4-2)√5 + (2+7)√3
= 2√5 + 9√3