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3 years ago

Solve this equation by factoring 6n^2-18n-18=6

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

5 0

$6n^{2}-18n-18=6 \\ 6n^{2}-18n-24=0 \\ 6(n^{2}-3n-4)=0 \\ 6(n-4)(n+1)=0 \\ \boxed{n=4\ and\ -1}$

Serga [27]3 years ago

5 0

$6n^2-18n-18=6 \\
6n^2-18n-24=0\\
n^2-3n-4=0\\
n^2+n-4n-4=0\\
n(n+1)-4(n+1)=0\\
(n-4)(n+1)=0\\
n=4 \vee n=-1$

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Step-by-step explanation:

Given

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3 years ago

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Answer: 2.5 times

Step-by-step explanation:

Given : The length of Chase’s bike ride= $8\dfrac{3}{4}\ miles$

The length of Maddie’s bike ride= $3\dfrac{1}{2}\ miles$

In improper fraction : Length of Chase’s bike ride= $\dfrac{4(8)+3}{4}\ miles$

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Similarly , Length of Maddie’s bike ride= $\dfrac{7}{2}\ miles$

The number of times the length of Chase’s bike ride was Maddie’s bike ride= $\dfrac{\text{ Length of Chase’s bike ride}}{\text{ Length of Maddie’s bike ride}}$

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Hence, the length of Chase’s bike ride was 2.5 times Maddie’s bike ride.

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3 years ago