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Rufina [12.5K]
3 years ago
13

Why is the x intercept wrong?

Mathematics
1 answer:
tatiyna3 years ago
7 0
It’s wrong because it isn’t one of the zeroes for the equation
f(x)=-16x^2+64x+80
Divide by -16
x^2-4x-5
(x-5)(x+1)
Set them up to zero
x-5=0. x+1=0
x=5. x=-1
5 and -1 are your possible zeroes
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Vinil7 [7]

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Step-by-step explanation:

To solve using completing square, we need to write the equation as x2+3x=17.

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weeeeeb [17]

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AnnyKZ [126]

Answer:

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Travka [436]

Answer:

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