add: 2x(1+x²+3x)+5x and 4 (x²+3x-1)
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Answered by
2
Answer:
2x^3+10x^2+19x-4 is the answer.
Explanation:
2x(1+x²+3x)+5x+4 (x²+3x-1)
=2x+2x^3+6x^2+5x+4x^2+12x-4
=2x^3+10x^2+19x-4
Hope it helps you.
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Answered by
1
Add: 2x(1+x²+3x)+5x and 4 (x²+3x-1)
2x(1+x²+3x)+5x+ 4 (x²+3x-1)
=2x+2x³+6x²+5x+4x²+12x-4
=2x³+10x²+19x-4
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