1 year ago

For what values of x is x2-36=5x true?

Mathematics

2 answers:

Inessa05 [86]1 year ago

6 0

Answer:

X = -12

Step-by-step explanation:

x2-36=5x

take away 2x from both sides

-36=3x

divide both sides by 3

X = -12

katrin2010 [14]1 year ago

3 0

Answer:

x=-12

Step-by-step explanation:

x2-36=5x

add 36 to both sides

x2=5x+36

subtract 5x from both sides

x(-3)=36

divide both sides by -3

x=-12

substitute to prove right

(-12)2-36=5(-12)

-24-36=-60

-60=-60

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For First Solution: $y_1(t)=e^t$

In order to prove whether it is a solution or not we have to put it into the equation and check. For this we have to take derivatives.

$y_1(t)=e^t$

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In order to prove whether it is a solution or not we have to put it into the equation and check. For this we have to take derivatives.

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Put Them in equation y''-y=0

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Hence $y_2(t)=cosht$ is the solution of equation y''-y=0.

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