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Rina8888 [55]
3 years ago
5

For what value of x is...

Mathematics
2 answers:
lianna [129]3 years ago
5 0

Answer:

  • x = 6

Step-by-step explanation:

<u>Set the equation and solve for x:</u>

  • (x + 1)² = (x - 3)² + 120
  • x² + 2x + 1 = x² - 6x + 9 + 120
  • 2x + 6x = 129 - 1
  • 8x = 128
  • x = 128/8
  • x = 6
Luda [366]3 years ago
3 0

Lets , find the value of x :

→(x + 1)² = (x - 3)² + 120

→x² + 2x + 1 = x² - 6x + 9 + 120

→2x + 6x = 129 - 1

→8x = 128

→x = \frac{128}{8}

→x = 6

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Solve problems 3, 7, 15, 17, 19, 20, 21
7nadin3 [17]
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17. | -3d | = 15
  
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