2 years ago

What are there two solutions for the equations |6+y|=2?Explain.

Mathematics

2 answers:

tester [92]2 years ago

7 0

Because the equation is a positive number lower than the original

Lady bird [3.3K]2 years ago

6 0

Answer:

y= -4

Step-by-step explanation:

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Answer:

x=0.5355 or x=-6.5355

First step is to: Isolate the constant term by adding 7 to both sides

Step-by-step explanation:

We want to solve this equation: $2x^2 + 12x - 7 = 0$

On observation, the trinomial is not factorizable so we use the Completing the square method.

Step 1: Isolate the constant term by adding 7 to both sides

$2x^2 + 12x - 7+7 = 0+7\\2x^2 + 12x=7$

Step 2: Divide the equation all through by the coefficient of $x^2$ which is 2.

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Step 3: Divide the coefficient of x by 2, square it and add it to both sides.

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Therefore, we have:

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Step 4: Write the Left Hand side in the form $(x+k)^2$

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Step 5: Take the square root of both sides and solve for x

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