find the value of f(x)= 2x⁴ + 9x³+11x²+4x-6 at x = -3
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Answered by
8
Answer:
The value of f(x)= 2x⁴ + 9x³+11x²+4x-6 at x = -3 is 0.
Step-by-step explanation:
f(x)= 2x⁴ + 9x³+11x²+4x-6
f(-3)= 2(-3)⁴ + 9(-3)³+11(-3)²+4(-3)-6
=162-243+99-12-6
=0
The value of f(x)= 2x⁴ + 9x³+11x²+4x-6 at x = -3 is 0. x=-3 is a zero of the polynomial.
Answered by
2
Answer:
= 2x^4 + 9x^3 + 11X^2 + 4x - 6
given x is = -3
=2* ( - 3^4) + 9 * (- 3 ^3) + 11 * (- 3^2) + 4 * ( - 3) -6
= 2* 81 +9* (-27) +11* 9 -12-6
= 162 -243 + 99 -18
= 0
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