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4 years ago

Question 16 of 40

Mathematics

1 answer:

Irina-Kira [14]4 years ago

8 0

Answer:

Option C. $(x+3)^2=13$

Step-by-step explanation:

we have

$x^2+6x-4=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^2+6x=4$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^2+6x+3^2=4+3^2$

$x^2+6x+9=13$

Rewrite as perfect squares

$(x+3)^2=13$

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shusha [124]

Let L represent lower level tickets and U upper level.

Starter equations:
L + U = 2368
78L + 59U = 157800

Solve simultaneous equations:
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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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Read 2 more answers

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marishachu [46]

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3 years ago