4x^2+20x+25=9

Simple and best practice solution for 4x^2+20x+25=9 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4x^2+20x+25=9 equation:


Simplifying
4x2 + 20x + 25 = 9

Reorder the terms:
25 + 20x + 4x2 = 9

Solving
25 + 20x + 4x2 = 9

Solving for variable 'x'.

Reorder the terms:
25 + -9 + 20x + 4x2 = 9 + -9

Combine like terms: 25 + -9 = 16
16 + 20x + 4x2 = 9 + -9

Combine like terms: 9 + -9 = 0
16 + 20x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(4 + 5x + x2) = 0

Factor a trinomial.
4((4 + x)(1 + x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {-4, -1}

See similar equations:

| 18x^4-10x^2=0 | | 8y-(2+3)=14 | | 100-26/3=x | | 8.2+n=52 | | 100-26/3+=x | | 8x^2+70-88=0 | | k=x+3/x-3 | | 1/3(6x-9)=-10 | | n+41/2=-8 | | 4(4x+2)-13=14x+3 | | 4(8)+38= | | 4x+38=8x+6 | | (4x+3y)/8 | | 5k=3t-3k/3t | | 4x+3y/8 | | 2(13)+87= | | 2x+87=8x+9 | | 4x+25=7x+4 | | X+13-13= | | x=32.50 | | 7[x+7]=7 | | 20=-320 | | 2-3(x+4)=-9(3+2x) | | 87+31.6= | | 3x-13=305 | | 7/8(a+1)+5/6(w-3) | | 2(15.8)+87= | | 7x-4-5x+1= | | 2(x^2)-15x=0 | | 10.00=0.4x+5.35 | | 2x+87=7x+8 | | 1/4(p+4)+3/5(p-1) |

Equations solver categories