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USPshnik [31]
2 years ago
7

What is the factorization of the polynomial 2x^2+28x+98

Mathematics
1 answer:
Fed [463]2 years ago
8 0

Option B. 2(x+7)(x+7) is the factorization of the polynomial 2x^{2}  + 28x+98.

Step-by-step explanation:

Step 1:

To determine which of the following options is the factor for the polynomial we can expand the given options and see which matches the given polynomial 2x^{2}  + 28x+98.

So we expand the four given options.

Step 2:

Option A. (2x+7)(x+7) = 2x^{2} +14x + 7x + 49 = 2x^{2} +21x+49.

Option B. 2(x+7)(x+7) = 2 (x^{2} +14x+49) = 2x^{2}  + 28x + 98.

Option C. (x+7)(x+2) = x^{2}  +2x+7x+14= x^{2} +9x+14.

Option D. (x+7)(x+14)= x^{2} +14x + 7x + 98 = x^{2} +21x+98.

Only option B matches the given polynomial 2x^{2}  + 28x+98. So option B is the factorization of the polynomial 2x^{2}  + 28x+98.

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Step-by-step explanation:

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4 0
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Setler79 [48]

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Lelechka [254]

Given:

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Use the formula,

\begin{gathered} (\frac{mx_2+nx_1}{m+n},\frac{my_2-ny_1}{m+n}) \\ (x_1,y_1)=(-9,-3) \\ (x_2,y_2)=(8,5) \\ m\colon n=1\colon4 \end{gathered}

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\begin{gathered} (\frac{1(8)+4(-9)}{1+4},\frac{1(5)+4(-3)}{1+4}) \\ (-\frac{28}{5},-\frac{7}{5}) \end{gathered}

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Answer:

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Hope this helps!

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