Answer:
» Collect like terms, r terms on the left hand side by subtracting r from both sides and adding st to both sides
» On the left hand side, factorise out r
Distribute
4x(2x^2-4x+5)-5x(2x+6)
8x^3-16x^2+20x-10x^3-30x
Combine Like Terms
8x^3-16x^2+20x-10x^3-30x
-2x^3-16^2+20x-30x
Combine like terms
-2x^3-16x^2 +20x-30x
-2x^3-16x^2-10x
Common factor
Factor by grouping
-2x^3 - 16x^2-10x
Find one factor
-2(x^3+8x^2+5x)
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<h2>Your answer: -2x(5x^2+4x+5)</h2><h2>(Simplified = 10x^3 + 8x^2 + 10x)</h2>
The orthocenter is the point of intersection of the altitude lines of the triangle. Of course, each altitude line is perpendicular to a side and passes through the vertex opposite.
A graphing program shows the appropriate choice to be
d (-2, 12)_____
Here, the answer choices are sufficiently far apart that you can pick the appropriate one "by eye." No calculations are necessary. The altitude lines to segments AB and BC must intersect in the second quadrant. Only one answer choice lies there.
Asnwer: 4,475
explaining how : Multiply both of the numbers you get in total : 985 and 3490. after add them together