Question

simplificar las siguientes expresiones​

Answer 1

Respuesta:

Saludos...

Explicación paso a paso:

a)

$5\left(a-b\right)\cdot \:2\left(a+b\right)\\\\5\cdot \:2\left(a-b\right)\left(a+b\right)\\\\5\cdot \:2\left(a^2-b^2\right)\\\\10a^2-10b^2$

b)

$-4\left(x^2-y^2+z\right)\left(x-3xy\right)\\\\-4\left(x^3-3x^3y-xy^2+3xy^3+xz-3xyz\right)\\\\-4x^3+12x^3y+4xy^2-12xy^3-4xz+12xyz$

c)

$3\left(n-1\right)\cdot \:5\left(2n-7\right)\\\\3\cdot \:5\left(n-1\right)\left(2n-7\right)\\\\3\cdot \:5\left(2n^2-9n+7\right)\\\\30n^2-135n+105$

d)

$3\left(a-3n\right)\left(5a+6\right)\\\\3\left(5a^2+6a-15an-18n\right)\\\\15a^2+18a-45an-54n$

e)

$\left(a+6m\right)\left(3-7a\right)\\\\a\cdot \:3+a\left(-7a\right)+6m\cdot \:3+6m\left(-7a\right)\\\\3a-7aa+6\cdot \:3m-6\cdot \:7am\\\\3a-7a^2+18m-42am\\\\\\NOSENADAOFICIAL$