(2x+1)3+(x-1)3 factories the question
Answers
Answered by
1
Step-by-step explanation:
6x+3+3x-3=0
6x+3x+3-3=0
9x=0
x=0
Answered by
2
Answer:
=2x^3+1^3+3×2x×1(2x+1)+x^3+1^3-3×x×1 (x-1)
=8x^3+1+12x^2+6x+x^3+1-3x^2+3x
=9x^3+9x^2+9x+2
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