(n-6)/(n-7)=9/2
-> 2(n-6)=9(n-7)
-> 2n-12=9n-63
-> 2n-9n=-63+12
-> -7n = -51
-> n = 51/7
The answer is n=51/7
Answer:
The answer is 1/2 second
Step-by-step explanation:
Hope this helps
Answer:
0.9 or 7.9
Step-by-step explanation:
Mark brainliest please
Answer:
See explanation
Step-by-step explanation:
Ana started the work nicely by multiplying out factors to get:\
![(x+4)(x+2)(2x+1)(x-2)=0](https://tex.z-dn.net/?f=%28x%2B4%29%28x%2B2%29%282x%2B1%29%28x-2%29%3D0)
She multiplied
correctly using difference of two squares to get: ![x^2-4](https://tex.z-dn.net/?f=x%5E2-4)
Unfortunately: She made a mistake in multiplying
she mistakenly got
instead of
. <em>She left out the coefficient of 2.</em>
Therefore the second step should have been:
![(x^2-4)(2x^2+9x+4)](https://tex.z-dn.net/?f=%28x%5E2-4%29%282x%5E2%2B9x%2B4%29)
The next step will now be:
![2x^4+9x^3+4x^2-8x^4-36x-16=0](https://tex.z-dn.net/?f=2x%5E4%2B9x%5E3%2B4x%5E2-8x%5E4-36x-16%3D0)
This simplifies to
![2x^4+9x^3-x^4-36x-16=0](https://tex.z-dn.net/?f=2x%5E4%2B9x%5E3-x%5E4-36x-16%3D0)
Answer:
27
Step-by-step explanation: