4x^2-15x+12=4x+5

Simple and best practice solution for 4x^2-15x+12=4x+5 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^2-15x+12=4x+5 equation:


Simplifying
4x2 + -15x + 12 = 4x + 5

Reorder the terms:
12 + -15x + 4x2 = 4x + 5

Reorder the terms:
12 + -15x + 4x2 = 5 + 4x

Solving
12 + -15x + 4x2 = 5 + 4x

Solving for variable 'x'.

Reorder the terms:
12 + -5 + -15x + -4x + 4x2 = 5 + 4x + -5 + -4x

Combine like terms: 12 + -5 = 7
7 + -15x + -4x + 4x2 = 5 + 4x + -5 + -4x

Combine like terms: -15x + -4x = -19x
7 + -19x + 4x2 = 5 + 4x + -5 + -4x

Reorder the terms:
7 + -19x + 4x2 = 5 + -5 + 4x + -4x

Combine like terms: 5 + -5 = 0
7 + -19x + 4x2 = 0 + 4x + -4x
7 + -19x + 4x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
7 + -19x + 4x2 = 0

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

Divide each side by '4'.
1.75 + -4.75x + x2 = 0

Move the constant term to the right:

Add '-1.75' to each side of the equation.
1.75 + -4.75x + -1.75 + x2 = 0 + -1.75

Reorder the terms:
1.75 + -1.75 + -4.75x + x2 = 0 + -1.75

Combine like terms: 1.75 + -1.75 = 0.00
0.00 + -4.75x + x2 = 0 + -1.75
-4.75x + x2 = 0 + -1.75

Combine like terms: 0 + -1.75 = -1.75
-4.75x + x2 = -1.75

The x term is -4.75x.  Take half its coefficient (-2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
-4.75x + 5.640625 + x2 = -1.75 + 5.640625

Reorder the terms:
5.640625 + -4.75x + x2 = -1.75 + 5.640625

Combine like terms: -1.75 + 5.640625 = 3.890625
5.640625 + -4.75x + x2 = 3.890625

Factor a perfect square on the left side:
(x + -2.375)(x + -2.375) = 3.890625

Calculate the square root of the right side: 1.97246673

Break this problem into two subproblems by setting 
(x + -2.375) equal to 1.97246673 and -1.97246673.

Subproblem 1

x + -2.375 = 1.97246673 Simplifying x + -2.375 = 1.97246673 Reorder the terms: -2.375 + x = 1.97246673 Solving -2.375 + x = 1.97246673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = 1.97246673 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = 1.97246673 + 2.375 x = 1.97246673 + 2.375 Combine like terms: 1.97246673 + 2.375 = 4.34746673 x = 4.34746673 Simplifying x = 4.34746673

Subproblem 2

x + -2.375 = -1.97246673 Simplifying x + -2.375 = -1.97246673 Reorder the terms: -2.375 + x = -1.97246673 Solving -2.375 + x = -1.97246673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = -1.97246673 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = -1.97246673 + 2.375 x = -1.97246673 + 2.375 Combine like terms: -1.97246673 + 2.375 = 0.40253327 x = 0.40253327 Simplifying x = 0.40253327

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.34746673, 0.40253327}

See similar equations:

| Y=7.0x+5 | | 6/x=4/11 | | a=1/2b | | 1/6+y=5/12 | | 2x-3(4x+5)= | | (1/x-1)-(1/x+1)=1 | | 52k=-456.2 | | 8p-4=7p+11 | | x+0.4x=10 | | 0.2(5-0.3x)=.16x+.208 | | x-11/2=17/4 | | 10-10x-6-2x=7 | | x+4/3=-5 | | 32x^9y^9+28x^5y^5+12x^3y^3=0 | | 6/2y-7=-1 | | 32x^9y^9+28x^5y*5+12x^3y^3=0 | | -9v-p=-12 | | 2(4x+5)=-49+11 | | 6(3k-2)= | | 1/2+3m/4=-1 | | 44m=-88.45 | | 1/6*x^(-2)-5/6*x^(-1)+1 | | 5y^2+2y-7=0 | | 1/4(4x-1)=-1/9-7/9 | | y-13/17=-3/17 | | -5m/3+27/4 | | c/5-2=8 | | U=F(r+A) | | 1500-100t=300t-22650 | | y=2+12 | | 2n+6.2=7.4 | | -7/5/8/3 |

Equations solver categories