A = (x + 1)(x + 2) + (× + 2)(x + 3) - 2(x + 5)(x - 2) - 2x?
A = (x + 1)(x + 2) + (× + 2)(x + 3) - 2(x + 5)(x - 2) - 2x.
10Josefaromero
En resumen
A = (x + 1)(x + 2) + (x + 2)(x + 3) - 2(x + 5)(x - 2) - 2x A = x² + 2x + x + 2 + x² + 3x + 2x + 6 - 2(x² - 2x + 5x - 10) - 2x A = x² + 2x + x + 2 + x² + 3x + 2x + 6 - 2x² + 4x - 10x + 20 - 2x A = 28.
Mejor respuesta
LauritDaniella8
A = (x + 1)(x + 2) + (x + 2)(x + 3) - 2(x + 5)(x - 2) - 2x
A = x² + 2x + x + 2 + x² + 3x + 2x + 6 - 2(x² - 2x + 5x - 10) - 2x
A = x² + 2x + x + 2 + x² + 3x + 2x + 6 - 2x² + 4x - 10x + 20 - 2x
A = 28.
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Yoursel
A = (x + 1)(x + 2) + (x + 2)(x + 3) - 2(x + 5)(x - 2) - 2x
A = x ^ 2 + 2x + x + 2 + x ^ 2 + 3x + 2x + 6 - 2(x ^ 2 - 2x + 5x - 10) - 2x
A = 2x ^ 2 + 6x + 8 - 2x ^ 2 + 4x + 20
A = 10x + 28.