1. √3(4 + √6) = 4√3 + √18 = 4√3 + 3√2
2. (4 + √5).4√5 = 16√5 + 4.5 = 16√5 + 20
3. (√2 + √7)(√2 + √7)
= 2 + √14 + √14 + 7
= 9 + 2√14
2. (4 + √5).4√5 = 16√5 + 4.5 = 16√5 + 20
3. (√2 + √7)(√2 + √7)
= 2 + √14 + √14 + 7
= 9 + 2√14
4. (√3 – √7)(√3 -√7)
= 3 – √21 – √21 + 7
= 10 – 2√21
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Originally posted 2022-06-05 09:57:23.
