(4√5-3√2) (3√5+5√2) simplify
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Answer:
(4√5-3√2)(3√5+5√2)
=4√5(3√5+5√2)-3√2(3√5+5√2)
=12×5+20√10-9√10-15√4
=60+20√10-9√10-15×2
=60+20√10-9√10-60
=60-60+20√10-9√10
=20√10-9√10
=11
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