Please be a little more specific on what you want to ask.
I can be of some help.
Answer:
x int: (4,0)
Step-by-step explanation:
make y=0
x^2-4x=0 add 4 to both sides
x^2=4x divide by x
x=4
Answer:
3√3+4
Step-by-step explanation:
Given the vectors u = <√3, -1> and v = <3, -4>
u · v = <√3, -1> *<3, -4>
u · v = 3√3 + (-1*-4)
u · v = 3√3+(4)
u · v = 3√3+4
Hence the dot product is 3√3+4