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slavikrds [6]
3 years ago
14

Simplify (x − 4)(x2+ 5x + 2).

Mathematics
2 answers:
Delvig [45]3 years ago
8 0
Distribute

x3 + 5x2 + 2x - 4x2 - 20x - 8

Add or subtract like terms.

x3 + x2 - 18x - 8
dezoksy [38]3 years ago
4 0
(x - 4)(x^2 + 5x + 2) =
x(x^2 + 5x + 2) - 4(x^2 + 5x + 2) =
x^3 + 5x^2 + 2x - 4x^2 - 20x - 8 =
x^3 + x^2 - 18x - 8 <==
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