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Factor 20x2 + 25x – 12x – 15 by grouping. 1. Group terms with common factors. 2. Factor the GCF from each group. 3. Write the polynomial as a product of binomials. (20x2 – 12x) + (25x– 15) 4x(5x – 3) + 5(5x – 3) (5x – 3)( x + )
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x – 2x – 12 – 1✔ 2x – 1
(2x + 1)(x – 1)(2x + 3)(7x – 1)✔ (7x + 3)(2x – 1)(7x – 1)(x – 2)
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Factoring Trinomials: a = 1
Factoring Polynomials: Double Grouping
Factoring Polynomials: GCF