Explicación paso a paso:
Binomio al cubo:
(a ± b)³ = a³ ± 3a²b + 3ab² ± b³
Resolvamos:
a)
(a+6)³ = (a)³ + 3(a)²(6) + 3(a)(6)² + (6)³
(a+6)³ = a³+18a²+108a²+216
b)
(m-3)³ = (m)³ - 3(m)²(3) + 3(m)(3)² - (3)³
(m-3)³ = m³-9m²+27m²-27
Respuesta:
[tex]\boxed{\left(a+6\right)^3}[/tex]
[tex]\bold{Formula \ para \ binomio \ al \ cubo:}[/tex]
[tex]\boxed{\bold{\left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3}}[/tex]
[tex]\left(a+6\right)^3=a^3+3a^2\cdot \:6+3a\cdot \:6^2+6^3[/tex]
[tex]\mathrm{Resolvemos:}[/tex]
[tex]3\cdot \:6=18[/tex]
[tex]a^3+18a^2+6^2\cdot \:3a+6^3[/tex]
[tex]6^2\cdot \:3a=108a[/tex]
[tex]6^3=216[/tex]
Solución:
[tex]\boxed{a^3+18a^2+108a+216}[/tex]
[tex]----------------------------------[/tex]
[tex]\bold{EJERCICIO \ 2}[/tex]
[tex]\boxed{\left(m-3\right)^3}[/tex]
[tex]\left(m-3\right)^3=m^3-3m^2\cdot \:3+3m\cdot \:3^2-3^3[/tex]
[tex]3m^2\cdot \:3=9m^2[/tex]
[tex]3m\cdot \:3^2=3^3m[/tex]
[tex]m^3-9m^2+3^3m-3^3[/tex]
[tex]3^3=27[/tex]
[tex]\boxed{m^3-9m^2+27m-27}[/tex]
Saludos...
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Verified answer
Explicación paso a paso:
Binomio al cubo:
(a ± b)³ = a³ ± 3a²b + 3ab² ± b³
Resolvamos:
a)
(a+6)³ = (a)³ + 3(a)²(6) + 3(a)(6)² + (6)³
(a+6)³ = a³+18a²+108a²+216
b)
(m-3)³ = (m)³ - 3(m)²(3) + 3(m)(3)² - (3)³
(m-3)³ = m³-9m²+27m²-27
Respuesta:
[tex]\bold{EJERCICIO \ 1}[/tex]
[tex]\boxed{\left(a+6\right)^3}[/tex]
[tex]\bold{Formula \ para \ binomio \ al \ cubo:}[/tex]
[tex]\boxed{\bold{\left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3}}[/tex]
[tex]\left(a+6\right)^3=a^3+3a^2\cdot \:6+3a\cdot \:6^2+6^3[/tex]
[tex]\mathrm{Resolvemos:}[/tex]
[tex]3\cdot \:6=18[/tex]
[tex]a^3+18a^2+6^2\cdot \:3a+6^3[/tex]
[tex]6^2\cdot \:3a=108a[/tex]
[tex]6^3=216[/tex]
Solución:
[tex]\boxed{a^3+18a^2+108a+216}[/tex]
[tex]----------------------------------[/tex]
[tex]\bold{EJERCICIO \ 2}[/tex]
[tex]\boxed{\left(m-3\right)^3}[/tex]
[tex]\bold{Formula \ para \ binomio \ al \ cubo:}[/tex]
[tex]\boxed{\bold{\left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3}}[/tex]
[tex]\left(m-3\right)^3=m^3-3m^2\cdot \:3+3m\cdot \:3^2-3^3[/tex]
[tex]\mathrm{Resolvemos:}[/tex]
[tex]3m^2\cdot \:3=9m^2[/tex]
[tex]3m\cdot \:3^2=3^3m[/tex]
[tex]m^3-9m^2+3^3m-3^3[/tex]
[tex]3^3=27[/tex]
Solución:
[tex]\boxed{m^3-9m^2+27m-27}[/tex]
Saludos...