Question

Complete the following activity to simplify 9/5 - 4,5+125 . 9.5 - 4,5+125 x 5. 5 =9V5 – 4,5+ =915 - 475+ ]) 5. 5​

Answer 1

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Answer 2

Answer:

Answer is 3

Step-by-step explanation:

$( \sqrt{5} + \sqrt{2} ) \: ( \sqrt{5} - \sqrt{2} ) \\ \\ we \: know \: that \: (a + b)(a - b) = {a}^{2} - {b}^{2} \\ \\ = (\sqrt{5} ) ^{2} - ( \sqrt{2} ) ^{2} \\ = 5 - 2 \\ = 3$