Both expression have the same denominator: 9x²-1. Thus it must not be 0.
9x²-1=(3x-1)(3x+1)=0, resulting x=+-1/3.
Restrictions: x in R\{-1/3, 1/3}
Adding those expressions:
E=(-x-2)/(9x²-1 ) + (-5x+4)/(9x²-1)=
(-x-2-5x+4)/(9x²-1)=(-6x+2)/(9x²-1)=
(-2)(3x-1)/(9x²-1)=-2/(3x+1)
E=-2/(3x+1)
Answer: approximately km*1.61=m
Step-by-step explanation:
Answer:
C. 11
Step-by-step explanation:
Assuming the problem is 5x + (-2 * 2) with x equals 3.
5(3)+(-2*2)
15+(-4)=
15-4=11
Answer:
ok
Step-by-step explanation:
ok
Answer:
I think they first one is .5 and I'm not sure on the other
