Jika :
p(x) = 4x^3 - 2x^2 + 1
q(x) = x^4 - 8x^2 + 2 , dan
r(x) = p(x) - q(x)
Tentukan r(2) !
p(x) = 4x^3 - 2x^2 + 1
q(x) = x^4 - 8x^2 + 2 , dan
r(x) = p(x) - q(x)
Tentukan r(2) !
novitaadi
R(x) = p(x) - q(x) =( 4x^3 - 2x^2 + 1 ) - ( x^4 - 8x^2 + 2 ) = 4x^3 - 2x^2 + 1 - x^4 - 8x^2 + 2 = 4x^3 - x^4 - 10x^2 + 3 r(2) = 4(2^3) - 2^4 - 10(2^2) +3 = 4(8) - 16 - 10(4) +3 = 32 - 16 - 40 + 3 = -21
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