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Polynomials perimeter and area photo above

Polynomials perimeter and area photo above-example-1
User Canal
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1 Answer

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Answer: Perimeter
4x^(2) -6 or
2(2x^(2) -3) units

Area
-12x^(3) - 5x^(2) + 42x -20 or
2(-6x^(3) -5x^(2) + 21x -20) square units

Explanation:

A. Perimeter is Twice the length plus twice the length. P =2(l + w)

or P = 2L + 2W . Substitute the values given into the formula and Calculate.

P = 2[(2x + 5)(x-1) + 2(2-3x)] . becomes
2(2x^(2) +3x -5) + 2(2-3x),

then
4x^(2) + 6x - 10 - 6x +4 add like terms and simplify
4x^(2) -6

B. Area is Length times Width. Substitute the given values and calculate.

(2x + 5)(x-1)×(2-3x) (2x + 5)(x-1)(-3x+2)


-12x^(3) - 5x^(2) + 42x -20

It is difficult to imagine an actual rectangle with such dimensions. It's math theory.

User Jason Sankey
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