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Secondary 1 | Maths
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i dont get the 2x3x3xm=(2x3x5) x (2x3x5)
m = 2 x 5 x 5 pls explain
Date Posted: 3 months ago
Views: 65
For a number to be perfect cube x³.
The product of prime number, the index notation must be multiple of 3.
Example a³ × b⁶ × c⁹
For 540 = 2² × 3³ × 5
If 540 × m = to be perfect cube.
(540) × (m) = (2² × 3³ × 5) × (2 × 5⁵) to get
2³ × 3³ × 5³
Therefore, m = 2×5² = 50
The product of prime number, the index notation must be multiple of 3.
Example a³ × b⁶ × c⁹
For 540 = 2² × 3³ × 5
If 540 × m = to be perfect cube.
(540) × (m) = (2² × 3³ × 5) × (2 × 5⁵) to get
2³ × 3³ × 5³
Therefore, m = 2×5² = 50
thank u
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