Factorice a ^ 2 - b ^ 2 - a - b 2x ^ 2 - 2x - 112?
Factorice a ^ 2 - b ^ 2 - a - b 2x ^ 2 - 2x - 112.
10Aldica
Factorice a ^ 2 - b ^ 2 - a - b 2x ^ 2 - 2x - 112.
En resumen
》a ^ 2 - b ^ 2 - a - b (a + b)(a - b) - (a + b) (a + b)(a - b - 1) 》2x ^ 2 - 2x - 112 2(x ^ 2 - x - 56) 2(x - 8)(x + 7).
》a ^ 2 - b ^ 2 - a - b
(a + b)(a - b) - (a + b)
(a + b)(a - b - 1)
》2x ^ 2 - 2x - 112
2(x ^ 2 - x - 56)
2(x - 8)(x + 7).
(x - 3)(x + 7 / 8). Factorízala por fórmula general.
2x ^ 4 - 5x ^ 3 - 20x ^ 2 - 22x - 15 2x ^ 2 - 7x - 15 x ^ 2 x + 1 (2x ^ 2 - 7x - 15)(x ^ 2 + x + 1) 2x 3 x - 5 (2x - 3)(x - 5)(x ^ 2 + x + 1).
4ac - 2ad - bc - bd = (4ac - 2ad) - (bc - bd) = 2a(2c - d) - b(c - d) = (2a - b) (2c - d) (c - d).