9. Simplify each of the following expressions :
(i) (5+√5) (2+√3)
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Answer:
10-5✓3 + 2✓5 -✓15
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(5+√5) (2+√3)
= 5(2+√3)+√5(2+√3)
= 10+5√3 + 2√5 + √15
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