T(x) = -x² + 7x + 1 and r(x) = 5x² –2x + 8. Find (t–r) (2).(Choices)A.18 B.-18 C.-13 D.13

asked Sep 2, 2023 61.4k views

1 vote

8.3k points

Please log in or register to add a comment.

3 votes

Solve the substraction of the functions and then evaluate the result in x=2

$\begin{gathered} t-r=-x^2+7x+1-(5x^2-2x+8) \\ =-x^2-5x^2+7x+2x+1-8 \\ =-6x^2+9x-7 \end{gathered}$
undefined

7.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers