Answer:
![x = - \: 12.55 \: or \: x = 12.55](https://tex.z-dn.net/?f=x%20%3D%20%20%20-%20%5C%3A%2012.55%20%5C%3A%20or%20%5C%3A%20x%20%3D%2012.55)
Step-by-step explanation:
We want to solve for x in
![{x}^{2} + 4.7^{2} = 13.4^{2}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%204.7%5E%7B2%7D%20%20%20%3D%2013.4%5E%7B2%7D%20)
We group constants on the right to get:
![{x}^{2} = 13.4^{2} - {4.7}^{2}](https://tex.z-dn.net/?f=%7Bx%7D%5E%7B2%7D%20%20%3D%2013.4%5E%7B2%7D%20%20-%20%20%7B4.7%7D%5E%7B2%7D%20)
We apply difference of two squares
![{x}^{2} = (13.4 - {4.7})(13.4 + 4.7)](https://tex.z-dn.net/?f=%7Bx%7D%5E%7B2%7D%20%20%3D%20%2813.4%20%20-%20%20%7B4.7%7D%29%2813.4%20%2B%204.7%29)
![{x}^{2} = 157.47](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%3D%20157.47)
![x = \pm \sqrt{157.47}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cpm%20%5Csqrt%7B157.47%7D%20)
![x = \pm \: 12.55](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cpm%20%5C%3A%2012.55)
Answer:
3,466.32
Step-by-step explanation:
Answer:
(1,2)
Step-by-step explanation:
The solution is the point where the two lines intersect at.
In other words the point where the two lines make an x.
Hope this helps ya!!