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rewona [7]
3 years ago
7

-10k+1=40-7k Please show work

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0
Hope this help :-) in the picture u going to see the steps. The answer is 13

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How many solutions are there in the given equation?<br> y = 2x² + 6x + 4
tigry1 [53]

Step-by-step explanation:

Use the quadratic formula

=

−

±

2

−

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√

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x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.

2

2

+

6

+

4

=

0

2x^{2}+6x+4=0

2x2+6x+4=0

=

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a={\color{#c92786}{2}}

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b={\color{#e8710a}{6}}

b=6

=

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c={\color{#129eaf}{4}}

c=4

=

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6

±

6

2

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4

⋅

2

⋅

4

√

2

⋅

2

x=\frac{-{\color{#e8710a}{6}} \pm \sqrt{{\color{#e8710a}{6}}^{2}-4 \cdot {\color{#c92786}{2}} \cdot {\color{#129eaf}{4}}}}{2 \cdot {\color{#c92786}{2}}}

x=2⋅2−6±62−4⋅2⋅4

brainliest and follow and thanks

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3 years ago
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Liula [17]

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Step-by-step explanation:

abs(-54) = 54.

The absolute value of any number is the positive value.

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