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Secondary 1 | Maths
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Hi, please help me explain these. It's my daughter's HW. Thank you
Date Posted: 2 years ago
Views: 458
1a) prime product = 2² × 5² × 17²
1b) √28900 = 2×5×17 = 170
2² × 5² × 17² = (2×5×17)²
When √(2×5×17)² = 2×5×17
Example √4 = 2
Same as √2×2 = √2² = 2
1b) √28900 = 2×5×17 = 170
2² × 5² × 17² = (2×5×17)²
When √(2×5×17)² = 2×5×17
Example √4 = 2
Same as √2×2 = √2² = 2
For b) think of ³√8
8 = 2×2×2 = 2³
So, ³√8 = ³√2×2×2 =2
8 = 2×2×2 = 2³
So, ³√8 = ³√2×2×2 =2
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Hope this helps
Date Posted:
2 years ago
Thank you so much for your help.
Thank you
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