Answer:
x=0
Step-by-step explanation:
add 3 to both sides
subtract 4 from both sides
![\sqrt{x} +4-3=1\\\sqrt{x} +4=4\\\sqrt{x} =0](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%2B4-3%3D1%5C%5C%5Csqrt%7Bx%7D%20%2B4%3D4%5C%5C%5Csqrt%7Bx%7D%20%3D0)
He multiplied rather than dividing.
![\mathrm{Divide\:both\:sides\:by\:}7 \ \textgreater \ \frac{7m}{7}=\frac{56}{7} \ \textgreater \ Simplify \ \textgreater \ m = 8](https://tex.z-dn.net/?f=%5Cmathrm%7BDivide%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D7%20%5C%20%5Ctextgreater%20%5C%20%20%5Cfrac%7B7m%7D%7B7%7D%3D%5Cfrac%7B56%7D%7B7%7D%20%5C%20%5Ctextgreater%20%5C%20%20Simplify%20%5C%20%5Ctextgreater%20%5C%20m%20%3D%208)
Hope this helps!
You have to derive for a multiplication in both terms:
=e^x+xe^x-(e^x-1 + (x-2)e^x-1) now apply distributive property in the last term:
=e^x+xe^x+e^x-1-xe^x-1 now replace each x by 0 (x=0)
=1 + 0 + e^-1 + 0 = 1+ e^-1 = 1.3679
Answer:
B
Step-by-step explanation:
I just took it on edgenunity