Question

DADOS OS POLINOMIOS:
A (x)=7×^4 -8×^3+6×-5×
Q (x)=6×^5-6×^3+3×-5.
Calcule A (×)+Q(×), e determine observando o resultado.
Valor numérico para x=2

Answer 1

Resposta:

$A(x):\\ \\7x^{4}-8x^{3}+6x-5x=7x^{4}-8x^{3}+x\\ \\Valor~numerico~para~x=2\\ \\7.2^{4}-8.2^{3}+2=7.16-8.8+2=112-64+2=50\\ \\A(x)=50\\ \\Q(x)\\ \\6x^{5}-6x^{3}+3x-5=6.2^{5}-6.2^{3}+3.2-5=6.32-6.8+3.2-5=\\ \\192-48+6-5=145\\ \\Q(x)=145\\ \\A(x)+Q(x)=50+145\\ \\A(x)+Q(x)=195$