Which of the binomials below is a factor of this trinomial? x^2+19x+84 A. x-7 B. x+84 C. x+7 D. x^2+12
Mathematics · High School · Mon Jan 18 2021
llm
Answered on
We have,
x² +19x+84
By middle-term split method
x² + 12x + 7x + 84
x(x + 12) + 7(x + 12)
(x + 7) (x + 12)
Hence, option (C) is correct.