mjuan0312 mjuan0312
  • 01-03-2019
  • Mathematics
contestada

Solve. 5q^2 + 20 = 425

Solve 5q2 20 425 class=

Respuesta :

autumnreyn799 autumnreyn799
  • 01-03-2019

Answer:

c...................................................................................

Answer Link
jimrgrant1 jimrgrant1
  • 01-03-2019

Answer:

A

Step-by-step explanation:

Isolate 5q² by subtracting 20 from both sides

5q² = 405 ( divide both sides by 5 )

q² = 81 ( take the square root of both sides )

q = ± [tex]\sqrt{81}[/tex] = ± 9

Solution is { - 9, 9 }

Answer Link

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