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Solve the equation 2x² + 2x + 12 = 3x² – x + 2. A. x = –5, x = –2 B. x = 2, x = –5 C. x = 2, x =...
4 months ago
Q:
Solve the equation 2x² + 2x + 12 = 3x² – x + 2. A. x = –5, x = –2 B. x = 2, x = –5 C. x = 2, x = 5 D. x = –2, x = 5
Accepted Solution
A:
Subtract 2x^2 from both sides, subtract 2x from both sides, subtract 12 from both sides
x^2 - 3x - 10 = 0
Factor
(x-5)(x+2)=0
x=5, x=-2
Answer D