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10 questions from this quiz
ax+bcx+d\frac{ax+b}{cx+d}cx+dax+b
We don't know if (x+2)(x+2)(x+2) is positive/negative
(x+2)2(x+2)^2(x+2)2
It's guaranteed positive
(x+2)(x+2)(x+2)
2x2−2x−12≥02x^2-2x-12 \ge 02x2−2x−12≥0
Quadratic formula
x=3x=3x=3 and x=−2x=-2x=−2
Evaluate region test
Multiplying by a positive expression
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