Simplify (√0.7 + √70)2

Assessment: JAMB UTME - Mathematics - 2002 Subject: General Mathematics

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Simplify (√0.7 + √70)2
Answer Details
To simplify (√0.7 + √70)², we can use the formula (a + b)² = a² + 2ab + b², where a = √0.7 and b = √70. So, we have: (√0.7 + √70)² = (√0.7)² + 2(√0.7)(√70) + (√70)² Simplifying, we get: 0.7 + 2√(0.7 × 70) + 70 = 0.7 + 2√49 + 70 = 0.7 + 2(7) + 70 = 84.7 Therefore, the answer is 84.7.
Read lesson note on Surds (radicals) (WAEC)
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