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Ierofanga [76]
3 years ago
9

Please help me with this math question

Mathematics
2 answers:
STALIN [3.7K]3 years ago
5 0

Answer:

The answer is B i think..

german3 years ago
3 0

Answer:

B. 91

Step-by-step explanation:

13 + 13 x=6

13x6 =78

78 + 13 =91

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Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2
valentina_108 [34]

Answer:

Solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

Step-by-step explanation:

We need to solve the equation x^2+6x-8=0 by completing the square method.

For completing the square method: we need to follow: a^2+2ab+b^2=(a+b)^2

We are given:

x^2+6x-8=0

Solving by completing the square

x^2+2(x)(?)+(?)^2-8=0

We need to find ? in our case ? is 3 because 2*3= 6 and our middle term is 6x i,e 2(x)(3)=6x.

So, adding and subtracting (3)^2

x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17

So, solving the equation x^2+6x-8=0 by completing the square method we get \mathbf{(x+3)^2=17}

Option B is correct option.

7 0
3 years ago
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Sonja [21]
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4 years ago
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Answer:

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Answer:

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Step-by-step explanation:

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Alja [10]

Answer:

I think It is D

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3 years ago
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