Answers

  • Brainly User
2016-06-15T23:52:00+08:00
Simplify first:
 - 8 = (3x + 7)²

- 8 = 9x² + 42x + 49

Arrange in standard form, ax² + bx + c = 0

9x² + 42x + 49 + 8 = 0

9x² + 42x + 57 = 0

ANSWER:  The equation is quadratic.
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