w^2 + 6w - 11 = 0 completing the square.
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
w=17
w=-23
Step-by-step explanation:
w^2+6w-11=0
w^2+6w+_=11+_
to find the last term:
6÷2=3
3^2=9
¥
w^2+6w+9=11+9
w^2+6w+9=+20 or -20
(w+3)(w+3)=+20 or -20
w+3=20
w=20-3
w=17
w+3=-20
w=-20-3
w=-23