SOLUTION: complete the square x^2+10x+9=0
Algebra
->
Polynomials-and-rational-expressions
-> SOLUTION: complete the square x^2+10x+9=0
Log On
Algebra: Polynomials, rational expressions and equations
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Polynomials-and-rational-expressions
Question 872208
:
complete the square x^2+10x+9=0
Found 2 solutions by
ewatrrr, mananth
:
Answer by
ewatrrr(24785)
(
Show Source
):
You can
put this solution on YOUR website!
(x+5)^2 - 25 + 9 = 0
(x+5)^2 - 16 = 0
Answer by
mananth(16946)
(
Show Source
):
You can
put this solution on YOUR website!
x^2+10x+9=0
x^2++10x+25 -25+9=0
(x+5)^2 = 16
take the square root
(x+5) = +/- 4
x = -5-4 OR -5+4
x = -9 OR -1