SOLUTION: Solve by completeing the square. x squared - 6x -3 = 0 2x squared + 10x + 11 = 0

Algebra.Com
Question 121354: Solve by completeing the square.
x squared - 6x -3 = 0


2x squared + 10x + 11 = 0

Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!
X^2-6X-3=0
X^2-6X+9=3+9
(X-3)^2=12
X-3=SQRT12
X=3+3.464
X=6.464 ANSWER.
----------------------------------
2X^2+10X+11=0
2X^2+10X=11
2(X^2+5X+6.26)=11+2*6.25
2(X+5/2)^2=11+12.5
(X+5/2)^2=23.5/2
(X+5/2)^2=11.75
X+2.5=SQRT11.75
X=-2.5+3.4278
X=.92378 ANSWER.

RELATED QUESTIONS

solve the equation by completeing the square... (answered by stanbon,jim_thompson5910)
2x squared + 10x = -3 and x squared + 10x - 7 =... (answered by stanbon)
solve by completing square x squared +2x-3=0 (answered by Ave)
c..ex... Problem #22 Solve -9(x-3)^2 = -7 Problem #33 Solve by completeing the... (answered by jim_thompson5910)
Solve by completeing the square... (answered by Jk22)
7.)Solve by completeing the square.... (answered by nerdybill)
x squared + 7x + 3 = 0 solve by completing the... (answered by Fombitz)
Solve each of the following quadratic equations by completing the square... #22.... (answered by josmiceli)
Solve. x squared - 6x - 3 =... (answered by jim_thompson5910)