Welcome to Westonci.ca, the place where your questions are answered by a community of knowledgeable contributors. Discover precise answers to your questions from a wide range of experts on our user-friendly Q&A platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

The cost,C, of manufacturing and selling s units of a product is C=23x+70, and the corresponding revenue, R, is R=x^2-70. Find the break-even value of x.

Sagot :

[tex]23x+70=x^2-70\\ x^2-23x-140=0\\ x^2+5x-28x-140=0\\ x(x+5)-28(x+5)=0\\ (x-28)(x+5)=0\\ x=28 \vee x=-5[/tex]

x can't be negative so [tex]x=28[/tex]