Respuestas
Respuesta:
Ahí tienes
Explicación paso a paso:
1) (4a^2 -7ab))(2a^3b)
= (4a^2)(2a^3b) + (-7ab)(2a^3b)
= (8a^5 b) + (-14a^4 b^2)
= 8a^5 b -14a^4 b^2 Solución.
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2) (-3m)(5m^4 -3m^3 +6m -3)
= (-3m)(5m^4) + (-3m)(-3m^3) + (-3m)(6m) + (-3m)(-3)
= (-15m^5) + (9m^4) + (-18m^2) + (9m)
= -15m^5 +9m^4 -18m^2 +9m) Solución.
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3) (3x^3 -7x^2 -2x)(xy)
= (3x^3)(xy) + (-7x^2)(xy) + (-2x)(xy)
= (3x^4 y) + (-7x^3 y) + (-2x^2 y)
= 3x^4 y -7x^3 y -2x^2 y Solución.
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4) (-3ab)(2a^2 -7ab+8b^2)
= (-3ab)(2a^2) + (-3ab)(-7ab) + (-3ab)(8b^2)
= (-6a^3 b) + (21a^2 b^2) + (-24ab^3)
= -6a^3 b +21a^2 b^2 -24ab^3 Solución.
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5) (6a^3 b^2 -7a^2 b^3 +4ab^5)(4a^5 b^2)
= (6a^3 b^2)(4a^5 b^2) + (-7a^2 b^3)(4a^5 b^2) + (4ab^5)(4a^5 b^2)
= (24a^8 b^4)+ (-28a^7 b^5) + (16a^6 b^7)
= 24a^8 b^4 -28a^7 b^5 +16a^6 b^7 Solución.