1.
Given f(x)=4x2+19x−5 and g(x)=4x2−x .
What is (fg)(x)?
x+5x where x≠0, 1/4
−x19x−5 where x≠0, 5/19
xx+5 where x≠0, 5
−19x+5x where x≠0, 1/4
2.
Given f(x)=2x2+3x and g(x)=5x2−2x−6 .
What is (f+g)(x) ?
10x2+x+6
3x2−5x−6
7x2+x−6
−3x2+5x+6