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gladu [14]
3 years ago
13

Compute difference and simplify 4-2/9

Mathematics
1 answer:
Tems11 [23]3 years ago
5 0
(4-2)/9=1/3
4-(2/9)=3&2/3
I wasn't sure which you wanted so I put both
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Answer:

y=2x^2-4x-8

Step-by-step explanation:

<u>Factored form of a parabola</u>

y=a(x-p)(x-q)

where:

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Given x-intercepts:

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Therefore:

\implies y=a(x-(1+\sqrt{5}))(x-(1-\sqrt{5}))

\implies y=a(x-1-\sqrt{5})(x-1+\sqrt{5})

To find a, substitute the given point (4, 8) into the equation and solve for a:

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\implies a(3-\sqrt{5})(3+\sqrt{5})=8

\implies4a=8

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\implies y=2(x-1-\sqrt{5})(x-1+\sqrt{5})

Expand so that the equation is in standard form:

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\implies y=2(x^2-2x-4)

\implies y=2x^2-4x-8

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1 year ago
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Step-by-step explanation:

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