avery588 avery588
  • 09-03-2024
  • Mathematics
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(b) The value of 3x5 - 8x4 +9x³-2x² for x= -2 is
(Simplify your answer.)

Respuesta :

semsee45
semsee45 semsee45
  • 09-03-2024

Answer:

-304

Step-by-step explanation:

To find the value of the polynomial 3x⁵ - 8x⁴ + 9x³ - 2x² for x = -2, we substitute -2 in place of x in the polynomial:

[tex]3(-2)^5 - 8(-2)^4 + 9(-2)^3 - 2(-2)^2[/tex]

Evaluate the exponents:

[tex]3(-32)-8(16)+9(-8)-2(4)[/tex]

Perform multiplication:

[tex]-96-128-72-8[/tex]

Subtract:

[tex]-224-72-8\\\\-296-8\\\\-304[/tex]

Therefore, the value of the given polynomial for x = -2 is:

[tex]\LARGE\boxed{\boxed{-304}}[/tex]

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