Respuesta :

stricklama
give me the brainliest if u like the answer

f(x)•g(x) = (5x+7)×(x-9)
now multiply 5x with both terms and 7 with both terms

[tex]5 {x}^{2} - 45x + 7x - 63 \\ 5 {x}^{2} - 38x - 63[/tex]