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Factoring and Solving Polynomial Equations Section 6.4

Factoring and Solving Polynomial Equations Section 6.4. Special Factoring Patterns. Sum of two cubes a 3 + b 3 = (a + b) (a 2 ? ab + b 2 ) x 3 + 8 = (x + 2) (x 2 ? 2x + 4) Difference of two cubes a 3 ? b 3 = (a ? b) (a 2 + ab + b 2 ) 8x 3 ? 1 = (2x ? 1) (4x 2 + 2x + 1).

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