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Lesechka [4]
3 years ago
7

How do you factor this problem? I know you have to pull out the GCF first but I'm still stumped. 18x³-51x²+36x​

Mathematics
1 answer:
ivann1987 [24]3 years ago
8 0

Answer:

one is direct x = 0 , next we need to find out 18x^2 - 51x + 36. ( Shri Dharacharya formula)

Step-by-step explanation:

1. ( - (-51) + - √ ( 51^2 - 4* 18 *36)) / 2* 18

2. ( 51 + - 3 ) / 36

3. x = 0 , x = 3/2 , x = 4/3

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Answer:

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Step-by-step explanation:

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3 years ago
A spring has natural length 20 cm. Compare the work W1 done in stretching the spring from 20 cm to 30 cm with the work W2 done i
Ksju [112]

Answer:

W₂ is three times W₁ (W₂ = 3W₁)

Step-by-step explanation:

Applying,

W = ke²/2............. Equation 1

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For W₁,

W₁ = ke₁²/2

Given: e₁ = 30-20 = 10 cm = 0.1 m

Substitute these value into equation 1

W₁ = k(0.1²)/2

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For W₂,

W₂ = (ke/2)-W₁

Given: e = (40-20) = 20 cm = 0.1 m

Substitute these value into equation 1

W₂ = (k×0.2²/2)-0.005

W₂ = 0.015k Joules.

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Therefore,

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3 0
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