Alrighty
remember
![log_a(b)=c](https://tex.z-dn.net/?f=log_a%28b%29%3Dc)
means
![a^c=b](https://tex.z-dn.net/?f=a%5Ec%3Db)
and
![ln(x)=log_e(x)](https://tex.z-dn.net/?f=ln%28x%29%3Dlog_e%28x%29)
and
![x^0=1](https://tex.z-dn.net/?f=x%5E0%3D1)
for all real values of x
so
![ln(x^2+4x-5)=0](https://tex.z-dn.net/?f=ln%28x%5E2%2B4x-5%29%3D0)
means
![log_e(x^2+4x-5)=0](https://tex.z-dn.net/?f=log_e%28x%5E2%2B4x-5%29%3D0)
means
![e^0=x^2+4x-5](https://tex.z-dn.net/?f=e%5E0%3Dx%5E2%2B4x-5)
which simplifies to
1=x²+4x-5
minus 1 both sides
0=x²+4x-6
use quadratic formula or complete the square
![x=-2+\sqrt{10}](https://tex.z-dn.net/?f=x%3D-2%2B%5Csqrt%7B10%7D)
and
![x=-2-\sqrt{10}](https://tex.z-dn.net/?f=x%3D-2-%5Csqrt%7B10%7D)
2 solutions
Answer:
3x(x-1) = 0
x= 1
Step-by-step explanation:
is 3x2 supposed to mean 3x^2 i dont know
Answer:
y=mx+c
Step-by-step explanation:
A linear equation means the equation of straight line.
The formula for equation of straight line in slope intercept form is y=mx+c
where, m is the slope of line and c is the y intercept
The formula for equation of straight line in double intercept form is x/a+y/b=1
The formula for equation of straight line in normal form is xcos α + y cos α=p
There are more formulas bur assuming you are asking for the general representation of the straight-line equation, it is y=mx+c.