Find the positive square root of
iii) 8 – √20 - ✓40 + ✓8
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Step-by-step explanation:
8- √20- √40+ √8
8-√(4×5)- √(8×5)+ √(4×2)
8-2√5- √(4×2×5)+ √(4×2)
8- 2√5- 2√10+ 2√2
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