Question

Realiza las siguientes multiplicaciones aplicando la propiedad distributiva: a- 2(7 + 6) b- 4/3(3³ +2²) c- (2 − 1)(2 + 1) d- (1/2 −2) (2/3 + 3) e- 3(3² −7²) f- (1/4 −2) (1/4 + 2)

Answer 1

Respuesta:

LETRA A

$2(7 + 6)\\\\14+12\\\\26$

LETRA B

$\frac{4}{3}\left(3^3+2^2\right)\\\\=\frac{4\left(3^3+2^2\right)}{3}\\\\=\frac{124}{3}$

LETRA C

$(2 - 1)(2 + 1)\\\\4+2-2-1\\3$

LETRA D

$\left(\frac{1}{2-2}\right)\left(\frac{2}{3}+3\right)\\=\frac{1}{2-2}\left(\frac{2}{3}+3\right)\\\\=\frac{11}{3}\cdot \frac{1}{2-2}\\\\=\frac{1\cdot \:11}{\left(2-2\right)\cdot \:3}\\=\frac{11}{3\left(2-2\right)}\\\\=\frac{11}{0}$

LETRA E

$3\left(3^2-7^2\right)\\\\3(9-49)\\\\27-149\\\\-120$

LETRA F

$\left(\frac{1}{4-2}\right)\left(\frac{1}{4}+2\right)\\\\=\frac{1}{4-2}\left(\frac{1}{4}+2\right)\\\\=\frac{1}{2}\left(\frac{1}{4}+2\right)\\\\=\frac{1}{2}\cdot \frac{9}{4}\\\\=\frac{1}{2}\cdot \frac{9}{4}\\\\=\frac{9}{2\cdot \:4}\\\\=\frac{9}{8}$