Shift substitution x → x − h (Roots of P(x+h)=0 are old roots shifted down by h on x-axis)
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Roots of P(x+h)=0 are old roots shifted down by h on x-axis
What each symbol means
| Symbol | What it stands for |
|---|---|
| P | Quadratic polynomial |
| h | Real shift |
When to use this
Real coefficients.