Question

(b)(7-√5) + (2√5-3)​

Answer 1

Step-by-step explanation:

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$(7 - \sqrt{5} ) + (2 \sqrt{5} - 3) \\ = 7 - \sqrt{5} + 2 \sqrt{5} - 3 \\ = 7 - 3 + 2 \sqrt{5} - \sqrt{5} \\ = 4 + \sqrt{5}$

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Answer 2

Answer is in the attachment. Hope it helps and if it does please mark as brainliest