Question

On simplifying
$(5 + \sqrt{2)} (3 + \sqrt{5)}$
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Answer 1

Step-by-step explanation:

1)(5+ √5)( 5√5) 52-√5225 - 5 = 20 2)(3+2√2)(3-2√2)

3² - (2√2)² = 9 - 8 = 1.