math
posted by amber .
x^2=8x9
solve by completing the square to obtain exact solutions

x^2  8x + .... = 9 + ....
x^2  8x + 16 = 9 + 16
(x4)^2 = 7
x4 ± √7
x = 4 ± √7
Respond to this Question
Similar Questions

Maths
Solve for x (exact solutions): sin x  sin 3x + sin 5x = 0 ¦Ð ¡Ü x ¡Ü ¦Ð  Thankyou. I tried find the solutions on my graphics calculator but however, the question is to find the EXACT solution(s) for the equation … 
Algebra
Complete the square to obtain exact solutions: x^2+6x+13 = 0 2x^25x3 = 0 
Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain … 
Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain … 
Algebra 1 Answer Evaluation
Solve x^2 6x  13 = 0 by completing the square. Give exact solutions. A: x = ±√22 (or) x = ±4.69 
Algebra
Which of the following statements is true? 
Math check please
1. Solve the system of equations y=2x^23 y=3x1 a)no solution b)(1/2,5),(2,5/2) c)(1/2,5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=3x^2+x4? 
PreCalculus
Solve 0 = 3x^2 + 5x 1 by completing the square. Express your answer as exact roots. 3(x^2 + 5/3 + 25/36) = 1 (x+ 5/6)^2 = 37/36 sq root( x + 5/6)^2 = sq root (37/36) x + 5/6 = + sq root 37/6 x = 5/6 + square root 37 /6 < … 
Math (Quadratics)
3. Solve for x in 8x^2 + 2x  4 = 0 I have tried factoring, taking out a GCF then factoring, completing the square, and got a bunch of wrong answers. I thought we were supposed to complete the square, so maybe I'm just doing that wrong. … 
Algebraic
Determine the roots of the quadratic equation by completing the square. Solve for exact solutions and approximate solutions. Check your solutions. Y=x26x12