<span>take 5x as a factor of each term
5x(x^2 -4x - 12)
you now need to factor the quadratic...
hope it helps
</span>
Answer:
find the least common multiple or the greatest common factor
Step-by-step explanation:
Answer:
x = -1
Step-by-step explanation:
use the value of y and plug it in
2 = 2x + 4
-4. -4
-2 = 2x
divide each side by 2
-1 = x
you can plug it back in to see if it is right
x+y = 4
x=4-y
52x+50y=204
52(4-y)+50y=204
208-52y+50y=204
208-2y=204
-2y=-4
y=2
x= 4-2=2
check 52*2=104
50*2 = 100
104+100=204
so he traveled 2 hours at both 50 and 52 mph
