makyaisloading
makyaisloading makyaisloading
  • 24-05-2020
  • Mathematics
contestada

What are the solutions of the quadratic equation (x + 3)2 = 49?
O x=-2 and x = -16
O x = 2 and x = -10
O x= 4 and x = -10
O x = 40 and x = -58

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sqdancefan
sqdancefan sqdancefan
  • 24-05-2020

Answer:

  4 and -10

Step-by-step explanation:

Take the square root:

  x +3 = ±√49 = ±7

Subtract 3:

  x = -3 ± 7

For the minus sign, we have ...

  x = -3 -7 = -10

For the plus sign, we have ...

  x = -3 +7 = 4

The solutions are x = 4 and x = -10.

Ver imagen sqdancefan
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nylaescobedo40 nylaescobedo40
  • 20-10-2020

The solutions of the quadratic equation x = 4 and x = –10

Step-by-step explanation:

Answer Link

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