Question

Si f (x) = 5 - x^2 y g(x) = 3x^2 - 2

hallar g [ g(x) ]
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Answer 1

Respuesta:

f(x)=5-x ^ { 2 } yg(x)=3x ^ { 2 } -2

5-x^{3}yg=3x^{2}-2

-x^{3}yg=3x^{2}-2-5

-x^{3}yg=3x^{2}-7

(-yx^{3})g=3x^{2}-7

$\frac{\left(-yx^{3}\right)g}{-yx^{3}}=\frac{3x^{2}-7}{-yx^{3}}$

$g=\frac{3x^{2}-7}{-yx^{3}}$

$g=\frac{7-3x^{2}}{yx^{3}}$