SOLUTION: Which of the following equations has only one solution? x^2 + 4x + 4 = 0 x^2 + x = 0 x^2

SOLUTION: Which of the following equations has only one solution? x^2 + 4x + 4 = 0 x^2 + x = 0 x^2 - 1 = 0

Question 823283: Which of the following equations has only one solution?
x^2 + 4x + 4 = 0
x^2 + x = 0
x^2 - 1 = 0
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
---
you can solve all quadratic equations using this method:
---
x^2 + 4x + 4 = 0
---
the above quadratic equation is in standard form, with a=1, b=4, and c=4
---
to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 4 4
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
---
this quadratic has ONE real root (the x-intercept), which is:
x = -2
x = -2
---
---
---
---
x^2 + x = 0
---
the above quadratic equation is in standard form, with a=1, b=1, and c=0
---
to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 1 0
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
---
this quadratic has two real roots (the x-intercepts), which are:
x = 0
x = -1
---
---
---
---
x^2 - 1 = 0
---
the above quadratic equation is in standard form, with a=1, b=0, and c=-1
---
to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 0 -1
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
---
this quadratic has two real roots (the x-intercepts), which are:
x = 1
x = -1
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
RELATED QUESTIONS
Which of the following equations is quadratic? x(x2+ 1) = 0 5(4x+ 2) = 3 (x+ 3)(x+ 4)... (answered by MathLover1)

PLEASE HELP ME IF ANYONE CAN FOR WHICH OF THE FOLLOWING EQUATIONS IS X=-2 a ROOT?... (answered by CharlesG2)

Find the solution of ach quadratic equations using the quadratic formula. 1. X^2 + 10x + (answered by MathLover1)

I couldn't work letter C and #2, please assist. Please check the rest of the work and... (answered by yuendatlo,solver91311)

Determine the number of solutions for the following equation: x^2 - 4x + 4 = 0... (answered by vertciel)

what is the solution of x^2-4x+4=0 (answered by Earlsdon)

which equation has the same solution as x^2+4x-8=0 1.(x-2)^2=12 2.(x+2)^2=12... (answered by Boreal)

Consider the following final tableau corresponding to a linear programming problem. x (answered by Edwin McCravy)

Find all values of k for which the equation x^2 + 2kx + (-3)k - (-4) = 0 has only... (answered by josgarithmetic)