simplify (√2+√7)² simplify
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using (a+b)² = a²+ b² + 2ab
(√2 + √7)² = (√2)² + (√7)² + 2(√2)(√7)
(√2 + √7)² = 2 + 7 + 2√14
(√2 + √7)² = 9 + 2√14
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Answer:
(√2+√7)² = 9 + 2√14
Step-by-step explanation:
Formula: (a + b)² = a² + 2ab + b²
(√2+√7)² = (√2)² + 2 (√2 )(√7) + (√7)²
= 2 + 2 (√14 + 7
= (2 + 7) + 2 √14
= 9 + 2√14
(√2+√7)² = 9 + 2√14
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