Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

Help!! What’s c?? I can’t got it

Help Whats C I Cant Got It class=

Sagot :

Answer:  81

Explanation:

We take half of the x coefficient (18) to get 18/2 = 9

Then we square 9 to get 9^2 = 9*9 = 81

This process is done because (x+b)^2 = x^2+2bx+b^2

Notice the coefficient of the x term is 2b. That cuts in half to b, which then squares to b^2

Going back to the current problem, if c = 81 then,

x^2+18x+c = x^2+18x+81 = (x+9)^2

We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.