0
8n2 - 5n - 11 = 8
8n2 - 5n - 19 = 0
This cannot be factorised so use the quadratic formula:
n = [5 +/- sqrt(52 + 4*8*19)]/(2*8)
= [5 +/- sqrt(25 + 608)]/16
= [5 +/- sqrt(633)]/16
= [5 +/- sqrt(25.1595)]/16
= -1.25997 or 1.88497
Still curious? Ask our experts.
Chat with our AI personalities
RafaThere's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
ViviYour ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
BeauYou're doing better than you think!
Chat with BeauAdd your answer:
Earn +20 ptsQ: How do you solve 8n2-5n-11 equals 8?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Trending Questions
How many mm are in 7.25?
What does roman numeral X11?
What is 36 x 33?
What is the numbers between 1.25 and 1.26?
Is a trend line on a graph always the same as the line of best fit?
What is the mediam of 81416171717?
What numbers come in between 2 and 3?
Which organ system helps your body to sense things?
What is the expanded notation of seven and sixteen hundredth?
Are fairys 5 cm lomg?
How many hours is in 7 years?
What is 15500 40 percent?
What time 78 equals 224?
Convert a fraction to a decimal number?
0.2 in numerical order?
How do you figure the volume of a pyramid?
What are the values of x y and k when the line y equals 3x plus 1 is a tangent to the circle x squared plus y squared equals k?
How long is 107 minutes in hours?
What is two sixteenths in decimal form?
What terms is the most likely next step in the sequence z6 y14 x22 w30?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.