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14 One solution of the equation ax² + a = 150 is x = 7. (a) Find the value of a.​

14 One solution of the equation ax² + a = 150 is x = 7. (a) Find the value of a.​
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14 One solution of the equation ax² + a = 150 is x = 7. (a) Find the value of a.​

User Yoosaf Abdulla
by
8.5k points

1 Answer

4 votes

Answer:

  • The value of a is 3

----------------------------

Substitute 7 for x and solve for a:

  • a(7²) + a = 150
  • 49a + a = 150
  • 50a = 150
  • a = 3
User Joel James
by
7.3k points
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