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Lina20 [59]
3 years ago
6

Using the grouping method to factor the polynomial below completely. x^3+2x^2+4x+8

Mathematics
1 answer:
Ivenika [448]3 years ago
3 0

Answer:  (x+2)(x^2+4)

Step-by-step explanation:

x^3+2x^2+4x+8

(x^3+2x^2)+(4x+8)\\x^2(x+2)+4(x+2)

(x+2)(x^2+4)

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ivolga24 [154]

Answer:

The shaded region is 353.25m^2.

Step-by-step explanation:

The area of a circle is defined by the multiplication of the square of its radius, or half its diameter, by pi, or simply A=\pi r^2.

15m is the radius of the large circle, and also the diameter of the smaller circles.

The area of the shaded region will be the subtraction of the area of the two smaller circles from the area of the larger circle.

As such:

A=\pi(15)^{2}-2(\pi(\frac{15}{2} )^{2})\\\\A=(3.14)(15)^{2}-2(3.14)(\frac{15}{2} )^{2}\\A=706.5-353.25\\A=353.25

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3 years ago
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abruzzese [7]

Answer:

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Step-by-step explanation:

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3 years ago
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Lelechka [254]

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the common difference is negative because we subtract 6.5 to get the next term.

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3 years ago
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