Diketahui f(x) = x² + 2x - 8 dan g(x) = x + 4. maka (f • g) (-5) ?

*tolong bantuin jawab dong please*

Diketahui f(x) = x² + 2x – 8 dan g(x) = x + 4. maka (f • g) (-5) ?

Jawab:

$(f o g)(-5) = -9$

Penjelasan dengan langkah-langkah:

$Dik:\f(x) = x^{2} + 2x - 8\g(x) = x + 4\\Dit: (f o g)(-5) = ?\\Jawab:\(f o g)(-5) = f(g(-5))\\(f o g)(-5) = f((-5) + 4)\\(f o g)(-5) = f(-1)\\(f o g)(-5) = (-1)^{2} + 2(-1) - 8\\(f o g)(-5) = 1 - 2 - 8 = -1 - 8 = -9$