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(5 + 5x^4) - (x^4 - 2)
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(5 + 5x^4) - (x^4 - 2)

User Roman C
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1 Answer

5 votes

(5+5⁴)-(x⁴-2)=

(put out the brackets)

=(5+5x⁴)+(-1)(x⁴)+(-2)(-1)=

=5+5x⁴-x⁴+2=

(combine like terms)

=x⁴(5-1)+(5+2)=

=4x⁴+7 is your answer

User Elwyn
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