Answer:
5 (x-2) (x²+2x+4)
Step-by-step explanation:
Stating with 5x³ - 40, the want to simplify the x part by extracting the common factor, so
5x³ - 40 = 5(x³-8)
Now to factor x³-8, we can rewrite it in the format x³-2³, right?
And there's a formula to obtain x³-y³, which is the Difference of Cubes formula that goes like this: x³-y³= (x-y)(x²+xy+y²)
So, we apply this formula replacing the y with our value of 2:
x³-2³= (x-2)(x²+2x+2²) = (x-2)(x²+2x+4)
So, overall, we have 5x³ - 40 = 5 (x-2) (x²+2x+4)
Just combine these.
3x + 3x = 6x
x = 6
y = 1
The answer is 23 because if you subtract 100-50 you get it
Answer:
Simplify.
Rewrite the expression in the form z”. Z5 • Z6Simplify.
Rewrite the expression in the form z”. Z5 • Z6
You can use the equation d=rt
Amy 14.4=40r r=0.36 kilometers/minute
Bill 14.4=20r r= 0.72 kilometers/minute
Amy (0.36 kilometers/minute)(60 seconds/1000 meters)= 0.0216 meters/second
Bill (0.72 kilometers/minute)(60 seconds/1000 meters)=0.0432 meters/second
0.0432-0.0216=0.0216 meters/second faster than Amy
