Multiplying a polynomial by a monomial
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1
Multiply 4p(p² - 2p + 3).
4p³ - 8p² + 12p
2
Find (5a - 2b + c)(-ab).
-5a²b + 2ab² - abc
3
Simplify 3(2x - 1) - x(x + 4).
-x² + 2x - 3
4
Solve x(x + 2) = x² + 8.
x = 4