A handy synthetic division calculator can be found here:
http://www.mathportal.org/calculators/polynomials-solvers/synthetic-division-calculator.php
You will have to adjust your divisor to account for the leading 3.
Use synthetic division to divide p(x) = 3x3 − 10x2 − 31x − 12 by (3x + 5). Then check the solution.
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