2002
Mathematics
JAMB
Simplify (√0.7+√70)2
A.
84.7
B.
70.7
C.
217.7
D.
168.7
Correct Answer: 84.7
Explanation
(√0.7 + √70)2 = (√0.7 + √70)(√0.7 + √70) = 0.7+2√(0.7×70) + 70 = 0.7 + 14 + 70 = 84.7
(√0.7 + √70)2 = (√0.7 + √70)(√0.7 + √70) = 0.7+2√(0.7×70) + 70 = 0.7 + 14 + 70 = 84.7THIS WEEK's
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