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mihalych1998 [28]
3 years ago
11

Solve for x in the equation x2+2x+1=17

Mathematics
1 answer:
agasfer [191]3 years ago
6 0

The left side can be written as a square. We can take the square root, then subtract 1.

... (x +1)² = 17

... x +1 = ±√17

... x = -1 ±√17

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Answer:

  • J = [12] +A
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Step-by-step explanation:

If Anna's age is represented by A, then 12 more than Anna's age will be ...

  12 + A

Jason's age is said to be 12 more than Anna's age, so ...

  J = 12 + A

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The sum of their ages will be J + A. That is said to be 50, so ...

  J + A = 50

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These equations can be solved by using the first to substitute for J in the second.

  (12 +A) +A = 50

  2A = 38 . . . . . . . . subtract 12

  A = 19 . . . . . . . . . . divide by 2

  J = 12 +19 = 31 . . . find Jason's age

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1.37453298E231

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