Answer:
We start with the equation:
(x^2 - 1)/(x + 1) = 2
We want to rewrite this in standard form.
We can multiply both sides by (x + 1) to get:
((x^2 - 1)/(x + 1))*(x + 1) = 2*(x + 1)
x^2 - 1 = 2*(x + 1) = 2*x + 2
Now we can move all the terms to one side to get:
x^2 - 1 - 2 - 2*x = 0
x^2 - 2*x - 3 = 0
And this is a standard quadratic equation, that we can solve by using the Bhaskara's formula, this will give us the solutions:
Then the two solutions are:
x = (2 + 4)/2 = 3
x = (2 - 4)/2 = -1
A= 45 and b=45
It is an isosceles triangle therefore has both two equal sides and two equal angles.
Answer:
x=4
Step-by-step explanation:
tangent lines from the same point to a circle are congruent in length, so we can say that
5x+8 = 8x-4
5x -5x +8 = 8x - 5x -4
8 = 3x - 4
8+4 = 3x -4 + 4
3x = 12
3x/3 = 12/3
x=4
Answer:
point w
and point x
Step-by-step explanation:
point w is the reflection in the x axis and point x is reflection in the y axis
-3=u
12-2u=9u+45
add 2u to both sides
subtract 45 from both sides
divide by 11