4 years ago

Solve the equation 1/4 (x+2)+5=-x

Mathematics

2 answers:

AnnyKZ [126]4 years ago

8 0

Answer:

Exact Form:

x=−225

Decimal Form:

x=−4.4

Mixed Number Form:

x=−4 2/5

Step-by-step explanation:

marysya [2.9K]4 years ago

8 0

Answer:

x = 6

Step-by-step explanation:

1/4 (x-2) + 5 = x

1/4 (x-2) = x - 5

x - 2 = 4(x-5)

x-2 = 4*x + 4*-5

x-2 = 4x - 20

x - 4x = 2 - 20

-3x = -18

x = -18/-3

x = 6

Check:

1/4(6-2) + 5 = 6

1/4(4) + 5 = 6

1 + 5 = 6

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4 years ago

Find all the zeros of the equation -2x^4+27x^2+1200=0

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For this case we have the following polynomial:
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To solve the problem we apply the following steps:
1) We make a change of variables u = x ^ 2
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3) Solve the quadratic equation using the formula for the quadratic equation
4) We return the change and find four roots
Answer:
See attached image for procedure and solution