Question

62. Calcule.

a) (x² + 3x - 4) (x - 2)

b) (c³ + 4c² + c) (c - 1)

Answer 1

A)
(x^2+3x-4) (x-2)
x^3-2x^2+3x^2-6x-4x+8
x^3+x^2-10x+8

Answer 2

a) (x² + 3x - 4) (x - 2)

x3 + 3x2 - 4x - 2x² - 6x + 8 ==> x3 + x2 - 10x  + 8
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b) (c³ + 4c² + c) (c - 1)

c4 + 4c3 + c2 - c³ - 4c² - c ==> c4 + 3c³ - 3c² - c