High School

Which expression is equivalent to [tex]x^2(3x^3 - 2x) - (-7x^3 + 2)[/tex]?

A. [tex]3x^5 + 5x^3 - 2[/tex]

B. [tex]3x^5 - 9x^3 + 2[/tex]

C. [tex]3x^5 + 7x^3 - 2x + 2[/tex]

D. [tex]3x^6 + 7x^3 - 2x^2 - 2[/tex]

Answer :

Answer:

The equivalent expression is 3x^5-9x^3-2

Step-by-step explanation:

To find the equivalent expression, we need to

open up the brackets;

Thus;

x^2(3x^3 -2x) - (7x^3 + 2)

= 3x^5 -2x^3 -7x^3 -2

= 3x^5 -9x^3-2

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