(f-g)(x) is equivalent to f(x) - g(x)
So that would be (2x²-5) - (x²-4x-8) = 2x² - x² + 4x + 8 - 5 = x² + 4x + 3
Hope this helps.
I used a somewhat unorthodox method for this but here goes...
First find the bottom left angle of the triangle which equals 180 - 108 because they are a linear pair and linear pairs always add to equal 180 degrees.
Next I used the postulate that states "If two parralel lines are cut by a transversal, then there alternate interior angles are congruent". The bottom right exterior angle of this triangle equals 4x, which means the other side of the transversal equals 4x as well. I also know the exterior on the left side of the triangle excluding the vertex (x) equals 72, which we figured out in the first step.
4x = 72 + x
Next subtract x from both sides.
3x = 72
Then divide both sides by 3.
3/3 x = 72/3
And there's your answer.
x = 24
Hope this helps, sorry if it was a little confusing.
When I solved this problem I got x=-3/5
<em>Hi there!</em>
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<em>Distribute the Negative Sign:</em>
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<em>Combine Like Terms:</em>
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<em>Answer : </em>
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<em>Hope this helped you!</em>
Answer:
A parallelogram with diagonals that are congruent and opposite sides that are congruent.
Step-by-step explanation:
A square is defined as having all sides equal, and its interior angles all right angles (90°). From this it follows that the opposite sides are also parallel.
