Respuesta:
a) f+g
f(x)=7x+5 g(x)=x-4
f+g = 8x + 1
b)f*g
f*g = 7x+5 * x-4
f*g = 7x^2 - 4x +5x -20
f*g = 7x^2 +x -20
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Verified answer
Respuesta:
a) f+g
f(x)=7x+5 g(x)=x-4
f+g = 8x + 1
b)f*g
f(x)=7x+5 g(x)=x-4
f*g = 7x+5 * x-4
f*g = 7x^2 - 4x +5x -20
f*g = 7x^2 +x -20