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20 October, 20:50

Choose the expression that represents a cubic expression.

a. 19x^4 + 18x^3 - 16x^2 - 12x + 1

b. 10x^3 - 6x^2 - 9x + 12

c. - 9x^2 - 3x + 4

d. 4x + 3

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  1. 20 October, 23:14
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    b. 10x^3 - 6x^2 - 9x + 12

    Step-by-step explanation:

    A cubic expression has the highest power of the variable to the third power

    x^3

    b. 10x^3 - 6x^2 - 9x + 12

    is the only expression that has the highest power as x^3

    a has x^4 and c and d do not have an x^3 term
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