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Can someone please help me?? I have a huge test coming up and I need to review for it. Do you know the answer? If you do, please explain it because i want to be sure the day of the test. Thanks!! 25 Points!
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Can someone please help me?? I have a huge test coming up and I need to review for it. Do you know the answer? If you do, please explain it because i want to be sure the day of the test. Thanks!! 25 Points!!

Can someone please help me?? I have a huge test coming up and I need to review for-example-1
User Essex Boy
by
2.7k points

1 Answer

5 votes

Answer:

Easy way is completing a square:

  • x² + 20x - 39 = 10
  • x² + 2*x*10 + 100 = 49 + 100
  • (x + 10)² = 149
  • x + 10 = ± √149
  • x = - 10 ± √149

Correct choice is J

User Rahul Pant
by
3.3k points
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