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f(x) = -2x^5 + x^4 + x^2 -2; find f(-3) and f(4)

Sagot :

semsee45

Answer:

f(-3) = 574

f(4) = -1778

Step-by-step explanation:

[tex]f(x) = -2x^5 + x^4 + x^2 -2[/tex]

[tex]f(-3) = -2(-3)^5 + (-3)^4 + (-3)^2 -2[/tex]

[tex]\implies f(-3) = -2(-243) + 81 + 9 -2[/tex]

[tex]\implies f(-3) = 486 + 81 + 9 -2[/tex]

[tex]\implies f(-3) = 574[/tex]

[tex]f(4) = -2(4)^5 + (4)^4 + (4)^2 -2[/tex]

[tex]\implies f(4) = -2(1024) + 256 + 16 -2[/tex]

[tex]\implies f(4) = -2048 + 256 + 16 -2[/tex]

[tex]\implies f(4) =-1778[/tex]

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