Answered

Discover the best answers to your questions with the help of IDNLearn.com. Get the information you need from our experts, who provide reliable and detailed answers to all your questions.

Suppose that the functions s and t are defined for all real numbers x as follows.
s(x) = 2x+4
t(x) = 5x
Write the expressions for (s+t)(x) and (s-t)(x) and evaluate (s×t)(x)

Sagot :

[tex]s(x)=2x+4;\ D_s=\mathbb{R}\\\\t(x)=5x;\ D_t=\mathbb{R}\\\\D_s=D_t\\\\(s+t)(x)=s(x)+t(x)=2x+4+5x=7x+4\\\\(s-t)(x)=s(x)-t(x)=2x+4-5x=-3x+4\\\\(s\times t)(x)=(2x+4)\times5x=10x^2+20x[/tex]
Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. IDNLearn.com provides the answers you need. Thank you for visiting, and see you next time for more valuable insights.