1. √16 * √9 = 4 * 3 = 12
2. ³√5 * ³√25 = ³√125 = 5
3. √4 * √25 = √100 = 10
4. ³√8 * ³√27 = 2*3 = 6
5. √3 * √12 = √36 = 6
6. ³√3 * ³√9 = ³√27 = 3
7. √36 / √25 = 6/5
8. ³√32 / ³√-4 = ³√64 / ³√-8 = -2
9. (42 )1/4 = 2
10. √2 / √3 = √6 / 3
Advanced level answers
1. √(72x³) = √(6² * x²) * √(2 * x) = 6x√(2x)
2. ³√(80n5) = ³√(2³ * x³ * 10 * x²) = 2x ³√(10x²)
3. (54x2y^3)^⅓ * (5x3y4)^⅓ = 3y ³√(50x2y2) / 5xy2
4. 3√(7x3) * 2√(21x3y2) = 21x² √(3) / 42x²y
5. (1024x15)1/4 / (4x)1/4 = 4x4 4√(x²) / x
6. (2/3x)⅓ = 3√(18x2 ) / 3x
7. √((x3)/(5xy)) = x²√(5y) / 5xy
8. 3(5y3)⅓ * 2(50y4)⅓ = 6y ³√(1.5y²) / 10y²
9. √(48x3)/√(3xy2) = 4x/y
10. E = mc², c² = E/m, c = √(E/m), c = √(Em/m²), c = √(Em)/m
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