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ioda
3 years ago
8

Please help me! I'm not too sure how to solve this.

Mathematics
1 answer:
ki77a [65]3 years ago
8 0
-x+4>-3x-4
+x       +x
---------------------
4>-3x-4
+4    +4
----------------
8>-3x
/3   /3
----------------
8>2.7
x=2.7
Hope it helped!
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Solving Quadratic Equations using the Square Root Property
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Answer:

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Step-by-step explanation:

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x^2 + 7x = -10

To complete the square, you need to add the square of half of the x-term coefficient to both sides.

The x-term coefficient is 7. Half of that is 7/2. Square it to get 49/4. Now we add 49/4 to both sides of the equation.

x^2 + 7x + \dfrac{49}{4} = -10 + \dfrac{49}{4}

(x + \dfrac{7}{2})^2 = -\dfrac{40}{4} + \dfrac{49}{4}

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x + \dfrac{7}{2} = \pm \sqrt{\dfrac{9}{4}}

x + \dfrac{7}{2} = \pm \dfrac{3}{2}

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x = -\dfrac{4}{2}   or   x = -\dfrac{10}{2}

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3 years ago
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