(2x + 1)(x - 3)(x - 2)
(2x + 1)(x - 3) = 2x^2 - 6x + x - 3 = 2x^2 - 5x - 3
(x - 2)(2x^2 - 5x - 3) = -2(2x^2 - 5x - 3) + x(2x^2 - 5x - 3) =
-4x^2 + 10x + 6 + 2x^3 - 5x^2 - 3x =
2x^3 -9x^2 + 7x + 6 <=====
Answer:

Step-by-step explanation:
So, since the scale is 1:5, 1 ft is actually 5 feet.
×
Answer: 
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Work Shown:
Focus entirely on triangle ABD (or on triangle BCD; both are identical)
The two legs of this triangle are AB = 8 and AD = 8. The hypotenuse is unknown, so we'll say BD = x.
Apply the pythagorean theorem.

So that's why the diagonal BD is exactly
units long
Side note: 
Answer:

Step-by-step explanation:
Slope of a perpendicular line is the "negative reciprocal" of the slope of the original line (i.e
)
∴
the slope-intercept form: 
with
and 
is
