Question

[Cao Tấn Đạt]

a	b	c	(a × b) × c	a × (b × c)
8,4	9	1,2
8,1	7,7	3,6

Answer 1

[『Kuroba ム Tsuki Ryoo ︵²ᵏ⁷』]

`@` `\text {Ans}`

`\downarrow`

\(a\)	\(b\)	\(c\)	\(\left(a\times b\right)\times c\)	\(a\times\left(b\times c\right)\)
\(8,4\)	\(9\)	\(1,2\)	\(90,72\)	\(90,72\)
\(8,1\)	\(7,7\)	\(3,6\)	\(224,532\)	\(224,532\)

Answer 2

[Lê Hoàng Phú]

$a$	$b$	$c$	$\left(a\times b\right)\times c$	$a\times \left(b\times c\right)$
$8,4$	$9$	$1,2$	$90,72$	$90,72$
$8,1$	$7,7$	$3,6$	$224,532$	$224,532$