Question

What is the value of the expression?

9(8)
______
9(-4) * 9(10)

Answer 1

@Leong @stacy.reed08 @dan815

Answer 2

you mean 9 times 8 over [9 times (-4)] times [ 9 times 10] ?

Answer 3

\[\frac{ 9*4*2 }{9*4*2*-1*9*5}\]

Answer 4

Can you solve it from there?

Answer 5

yes, one sec....

Answer 6

Hint. Like terms cancel out.
So it's just 1/-45

Answer 7

yeah, that is what i got

Answer 8

bam you're the bomb

Answer 9

\(\dfrac{9(8)}{9(-4) \times 9(10)} =\)

\(=\dfrac{72}{-36 \times 90} \)

\(=\dfrac{\cancel{72}~2}{\cancel{-36}~-1 \times 90} \)

\(= -\dfrac{2}{90} \)

\(= -\dfrac{1}{45} \)

Answer 10

@sh3lsh : is 9 times (-4), not -8 so you can't : 9*2*4

Answer 11

@Leong
@sh3lsh did it correctly.
The 2 in 9 * 2 * 4 in the denominator comes from the 10 which is 2 * 5.
This is how he did it:

\(\dfrac{9(\color{red}{8})}{9(\color{blue}{-4}) \times 9(\color{green}{10})} =\)

\(=\dfrac{9 \times \color{red}{4 \times 2}}{9 \times \color{blue}{(-1) \times 4} \times 9 \times \color{green}{2 \times 5}} \)

\(=\dfrac{9 \times \color{red}{4 \times 2}}{9 \times \color{blue}{4} \times \color{green}{2 \times \color{blue}{(-1) } \times 9 \times 5}} \)

\(=\dfrac{\cancel 9 \times \cancel 4 \times \cancel 2 ~1}{\cancel 9 \times \cancel 4 \times \cancel 2 \times (-1) \times 9 \times 5} \)

\(= \dfrac{1}{-45} \)

\(=-\dfrac{1}{45} \)

Answer 12

ohhhhhhh