Given f(x)=4x2+19x−5 and g(x)=4x2−x .

What is (fg)(x) ?

xx+5 where x≠0, 5
−19x+5x where x≠0, 14
x+5x where x≠0, 14
−x19x−5 where x≠0, 519

THE RIGHT ANSWER IS THE
x+5x where x≠0, 14
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