Solve the quadratic equation using the method of completing the square: x2 - 14x – 21 = 0 . Student solution. After we move the free coefficient to the right hand side the equation becomes: In order to have a binomial square on the left hand side, we need to add value = . After adding this value to the both sides, the equation becomes: The left hand side rewrites as the square binomial 0-0 After we apply the square root property, we obtain O-0 or Lastly the solutions (separate by commas) are:

Solve the quadratic equation using the method of completing the square: x2 - 14x – 21 = 0 . Student solution. After we move the free coefficient to the right hand side the equation becomes: In order to have a binomial square on the left hand side, we need to add value = . After adding this value to the both sides, the equation becomes: The left hand side rewrites as the square binomial 0-0 After we apply the square root property, we obtain O-0 or Lastly the solutions (separate by commas) are:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter9: Quadratic Functions And Equations

Section9.5: Solving Quadratic Equations By Completing The Square

Problem 47PFA

See similar textbooks

Similar questions

Solve 5q211q+3=0 by using the Quadratic Formula.
Solve the following quadratic equations. Use any method. 532. 2x(3x2)1=0
Beginning with the general form of a quadratic equation, ax2+bx+c=0 , solve for xby using the completing the square method, thus deriving the quadratic formula.
Show that the sum of the two solutions to the quadratic equation is ba.
Solve: 8h=4h+12 .
Solve the formula A=P+Prt for t.