Question

3x³+9x²-x+8 when X=4​

Answer 1

Answer:

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Step-by-step explanation:

3(4)³+9(4)²-4+8

3×64+9×16-4+8

192+144-4+8

336+4

340

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Answer 2

Answer:

Step-by-step explanation:

3(4)^3+9(4)^2-4+8

=3(64)+9(16)+4

=192+144+4

=340