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tactorize \( m^{3}+n^{3} \) \( a^{1 x}-b^{6} \) \( 8 x^{3}-y^{9} \) \( x^{3}+8 y^{3} \)

Ask by Edwards Page. in South Africa
Feb 21,2025

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Answer

Here are the factorizations: 1. \( m^{3}+n^{3} = (m+n)(m^{2}-mn+n^{2}) \) 2. \( a^{1 x}-b^{6} \) – Cannot factorize due to possible typo. 3. \( 8 x^{3}-y^{9} = (2x-y^{3})(4x^{2}+2xy^{3}+y^{6}) \) 4. \( x^{3}+8 y^{3} = (x+2y)(x^{2}-2xy+4y^{2}) \)

Solution

Factor the expression by following steps: - step0: Factor: \(m^{3}+n^{3}\) - step1: Factor the expression: \(\left(m+n\right)\left(m^{2}-mn+n^{2}\right)\) Factor the expression \( x^{3}+8 y^{3} \). Factor the expression by following steps: - step0: Factor: \(x^{3}+8y^{3}\) - step1: Rewrite the expression: \(x^{3}+\left(2y\right)^{3}\) - step2: Factor the expression: \(\left(x+2y\right)\left(x^{2}-x\times 2y+\left(2y\right)^{2}\right)\) - step3: Calculate: \(\left(x+2y\right)\left(x^{2}-2xy+4y^{2}\right)\) Factor the expression \( 8 x^{3}-y^{9} \). Factor the expression by following steps: - step0: Factor: \(8x^{3}-y^{9}\) - step1: Rewrite the expression: \(\left(2x\right)^{3}-y^{9}\) - step2: Factor the expression: \(\left(2x-y^{3}\right)\left(\left(2x\right)^{2}+2xy^{3}+y^{6}\right)\) - step3: Evaluate: \(\left(2x-y^{3}\right)\left(4x^{2}+2xy^{3}+y^{6}\right)\) Here are the factorizations for the given expressions: 1. **For \( m^{3}+n^{3} \)**: \[ m^{3}+n^{3} = (m+n)(m^{2}-mn+n^{2}) \] 2. **For \( a^{1 x}-b^{6} \)**: - Unfortunately, no result could be found for this expression. It seems there might be a typo or an unconventional format in the expression. Please check the expression and provide a corrected version. 3. **For \( 8 x^{3}-y^{9} \)**: \[ 8 x^{3}-y^{9} = (2x-y^{3})(4x^{2}+2xy^{3}+y^{6}) \] 4. **For \( x^{3}+8 y^{3} \)**: \[ x^{3}+8 y^{3} = (x+2y)(x^{2}-2xy+4y^{2}) \] If you have any further questions or need additional assistance, feel free to ask!

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Bonus Knowledge

To factor \( m^{3}+n^{3} \), you can use the sum of cubes formula: \( a^3 + b^3 = (a + b)(a^2 - ab + b^2) \). So, it factors to \( (m + n)(m^2 - mn + n^2) \). For \( a^{1 x} - b^{6} \), if we assume it's \( a^x - b^6\), the expression can be factored as a difference of two squares if we treat it like a polynomial. However, with \( a \) and \( b \) being unknowns, the simpler representation remains \( a^x - b^6 \). To tackle \( 8x^{3}-y^{9} \), we can factor this as follows: recognize \( 8x^{3} \) as \( (2x)^{3} \) and \( y^{9} \) as \( (y^{3})^{3} \), allowing us to apply the difference of cubes formula: \( a^3 - b^3 = (a - b)(a^2 + ab + b^2) \). Therefore, it factors to \( (2x - y^3)((2x)^2 + (2x)y^3 + (y^3)^2) \). For \( x^{3}+8y^{3} \), likewise, recognize \( 8y^{3} \) as \( (2y)^{3} \) and apply the sum of cubes formula. Thus, it factors to \( (x + 2y)(x^2 - 2xy + 4y^2) \). Happy factoring!

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