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Mathematics
Alia Wagner
28 December, 09:40
Step-by-step solution for: (√2+√10) ^2
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Susan Stewart
28 December, 10:11
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Note: √a * √a = a
√a * √b = √ab
(√2 + √10) ² = (√2 + √10) (√2 + √10)
= √2 (√2 + √10) + √10 (√2 + √10)
= √2*√2 + √2*√10 + √10*√2 + √10*√10
= 2 + √20 + √20 + 10
= (2 + 10) + (√20 + √20)
= 12 + 2√20
√20 = √ (4 * 5) = √4 * √5 = 2√5
= 12 + 2√20 = 12 + 2 (2√5)
= 12 + 4√5
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