Question

x(x+4) +3x (2x²-1) +4x²+4​

Answer 1

• x(x+4) +3x (2x²-1) +4x²+4​

• x²+4x+6x^3-3x+4x²+4

• 6x^3+x²+4x²-3x+4

• 6x^3+5x²-3x+4

Therefore, this is your solution

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Thank you for your question it had helped me to think.

Answer 2

Answer:

Step-by-step explanation:

x(x+4) +3x (2x²-1) +4x²+4​

=$x^{2} +4x+6x^{2}-3x+4x^{2} +4\\=11x^{2} +x+4$