4m^2+16m+9=0

Simple and best practice solution for 4m^2+16m+9=0 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 4m^2+16m+9=0 equation:


Simplifying
4m2 + 16m + 9 = 0

Reorder the terms:
9 + 16m + 4m2 = 0

Solving
9 + 16m + 4m2 = 0

Solving for variable 'm'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.25 + 4m + m2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + 4m + -2.25 + m2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + 4m + m2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + 4m + m2 = 0 + -2.25
4m + m2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
4m + m2 = -2.25

The m term is 4m.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4m + 4 + m2 = -2.25 + 4

Reorder the terms:
4 + 4m + m2 = -2.25 + 4

Combine like terms: -2.25 + 4 = 1.75
4 + 4m + m2 = 1.75

Factor a perfect square on the left side:
(m + 2)(m + 2) = 1.75

Calculate the square root of the right side: 1.322875656

Break this problem into two subproblems by setting 
(m + 2) equal to 1.322875656 and -1.322875656.

Subproblem 1

m + 2 = 1.322875656 Simplifying m + 2 = 1.322875656 Reorder the terms: 2 + m = 1.322875656 Solving 2 + m = 1.322875656 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = 1.322875656 + -2 Combine like terms: 2 + -2 = 0 0 + m = 1.322875656 + -2 m = 1.322875656 + -2 Combine like terms: 1.322875656 + -2 = -0.677124344 m = -0.677124344 Simplifying m = -0.677124344

Subproblem 2

m + 2 = -1.322875656 Simplifying m + 2 = -1.322875656 Reorder the terms: 2 + m = -1.322875656 Solving 2 + m = -1.322875656 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = -1.322875656 + -2 Combine like terms: 2 + -2 = 0 0 + m = -1.322875656 + -2 m = -1.322875656 + -2 Combine like terms: -1.322875656 + -2 = -3.322875656 m = -3.322875656 Simplifying m = -3.322875656

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.677124344, -3.322875656}

See similar equations:

| -3.5+q=141 | | 18.897x^2+64.509x+4.9965=65 | | 18.3x^2-22x+22=0 | | 9*3x=24 | | -1=.6b+.2 | | -12+2d=13-2d | | -15=-5y-3x | | 4(w+1)+w=5(w-q)+9 | | 0=-2y+10-x | | 2p+20=8p-14 | | d^3+8d^2-4d-32=0 | | 27+10=15+12 | | -7[7x+4-3(x+1)]=-4x-4 | | x^2+(k-1)x+k+2=0 | | (Yx)(6x)=23xy | | K+3k+2k-k=-100 | | x^2(x^2-5)=36 | | x^2+.0306x+100=0 | | 9x=9+x | | 3.5x-9.65=7.5 | | 5x+9=7x+4 | | -6.5t+18=-9.7t+43.8 | | 7.2y-37.6=98.40+4.5y-60.8 | | 2(2x-7)=34 | | 2z+23=3(2-z) | | 3(cosx-sinx)=0 | | 4(2y+1)=8y+7 | | n*4-3=17 | | -5y-9=24 | | 7z+25=4(2-5z) | | 2y+3=125 | | 2m+5=207 |

Equations solver categories