Maths
posted by Remy .
I have already asked this question but I have to use my calculator to solve
x^2 + 8x + 5 = 0
Someone gave me a link to a quadratic formula solver but when I enter it into my calculator I nvever get the right answer.

You can graph it, if you calc is a graphing calc. graph y=x^2+8x+5, where it crosses the x axis, is the solutions.

I know but can you just tell me if this is correct:
a = 1 b = 8 c= 5
x= 8 + square root 8^2  (4x1x5)
 
2
Respond to this Question
Similar Questions

algebra
Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to find two numbers that =24 (2 times 12) and have a sum of 6. But I can't think of any! Can someone please help? 
math,algebra
can someone help me out factor out this 0=16t^2122t+180 i have so far this but the last one i am not sure 8(2t^214t + ? 
math, algebra
How can i solve for this would it best to factor or use the quadratic formula. solve: x^2+2x8=0 How about for this problem as well: solve : x^2+7x1 = 0 in the first, can you think of two multipliers of 8 that have a sum of 2? 
College Math II
Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am having problems using the quadratic formula to get the right answer. Can someone show me the steps that I use? 
math 20 (finance)Please help
At the end of each month, Jacob puts $400 into an account that pays 6%, compounded semiannually. Use your graphing calculator to determine how much Jacob will have after 25 years? 
MATH
Use your calculator to compute the actual roots. Use the Quadratic Formula to solve x2 – 4x – 8 = 0. 
Math
Solve for the zeros of the function using the quadratic formula. 3x^2=4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator. 
Algebra
Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a commaseparated list.) … 
Maths
Steve  you answered this question earlier for someone else and gave them the formula for how to answer it. I have the same problem in my homework and have used the formula you gave, but have got an answer that does not appear in the … 
Maths
Steve  you answered this question earlier for someone else and gave them the formula for how to answer it. I have the same problem in my homework and have used the formula you gave, but have got an answer that does not appear in the …