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b) (5w³ - 3b)² = (5w³)² - 2(5w³)(3b) + (3b)² ⇒ 25w⁶ - 30w³b + 9b²
c) (2/3x³ - 1/2)² = (2/3x³)² - 2(2/3x³)(1/2) + (1/2)² ⇒ 4/9x⁶ - 4/6x³ + 1/4 simplificas la expresión 4/9x⁶ - 2/3x³ + 1/4
Esta se resuelve asi:
(a + b) (a + c) = a² + a(b+c) + bc
d) (3h² - 2) (3h² - 3) = (3h²)² + 3h²(-2-3) + (-2)(-3) ⇒ 9h⁴ + 3h²(-5) + 6
9h⁴ - 15h² + 6
e) (2w + 5) (2x - 2) Aplicas propiedad distributiva término por término:
4wx -2w + 10x - 10
f)(0.1x² + 3) (2.5x² + 3) = 0.25x⁴ + 0.3x² + 7.5x² + 9 ⇒ 0.25x⁴ + 7.8x² + 9
En siguiente es un binomio conjugado
(a - b) (a + b) = a² -b²
g) (2/5m + 4) (2/5m - 4) = 4/25m² - 16
h (1.5f - 2.5) (1.5f + 2.5) = 2.25f² - 6.25