-4(1+8x)+7x(7x-3)=0

Simple and best practice solution for -4(1+8x)+7x(7x-3)=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 -4(1+8x)+7x(7x-3)=0 equation:


Simplifying
-4(1 + 8x) + 7x(7x + -3) = 0
(1 * -4 + 8x * -4) + 7x(7x + -3) = 0
(-4 + -32x) + 7x(7x + -3) = 0

Reorder the terms:
-4 + -32x + 7x(-3 + 7x) = 0
-4 + -32x + (-3 * 7x + 7x * 7x) = 0
-4 + -32x + (-21x + 49x2) = 0

Combine like terms: -32x + -21x = -53x
-4 + -53x + 49x2 = 0

Solving
-4 + -53x + 49x2 = 0

Solving for variable 'x'.

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

Divide each side by '49'.
-0.08163265306 + -1.081632653x + x2 = 0

Move the constant term to the right:

Add '0.08163265306' to each side of the equation.
-0.08163265306 + -1.081632653x + 0.08163265306 + x2 = 0 + 0.08163265306

Reorder the terms:
-0.08163265306 + 0.08163265306 + -1.081632653x + x2 = 0 + 0.08163265306

Combine like terms: -0.08163265306 + 0.08163265306 = 0.00000000000
0.00000000000 + -1.081632653x + x2 = 0 + 0.08163265306
-1.081632653x + x2 = 0 + 0.08163265306

Combine like terms: 0 + 0.08163265306 = 0.08163265306
-1.081632653x + x2 = 0.08163265306

The x term is -1.081632653x.  Take half its coefficient (-0.5408163265).
Square it (0.2924822990) and add it to both sides.

Add '0.2924822990' to each side of the equation.
-1.081632653x + 0.2924822990 + x2 = 0.08163265306 + 0.2924822990

Reorder the terms:
0.2924822990 + -1.081632653x + x2 = 0.08163265306 + 0.2924822990

Combine like terms: 0.08163265306 + 0.2924822990 = 0.37411495206
0.2924822990 + -1.081632653x + x2 = 0.37411495206

Factor a perfect square on the left side:
(x + -0.5408163265)(x + -0.5408163265) = 0.37411495206

Calculate the square root of the right side: 0.61164937

Break this problem into two subproblems by setting 
(x + -0.5408163265) equal to 0.61164937 and -0.61164937.

Subproblem 1

x + -0.5408163265 = 0.61164937 Simplifying x + -0.5408163265 = 0.61164937 Reorder the terms: -0.5408163265 + x = 0.61164937 Solving -0.5408163265 + x = 0.61164937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5408163265' to each side of the equation. -0.5408163265 + 0.5408163265 + x = 0.61164937 + 0.5408163265 Combine like terms: -0.5408163265 + 0.5408163265 = 0.0000000000 0.0000000000 + x = 0.61164937 + 0.5408163265 x = 0.61164937 + 0.5408163265 Combine like terms: 0.61164937 + 0.5408163265 = 1.1524656965 x = 1.1524656965 Simplifying x = 1.1524656965

Subproblem 2

x + -0.5408163265 = -0.61164937 Simplifying x + -0.5408163265 = -0.61164937 Reorder the terms: -0.5408163265 + x = -0.61164937 Solving -0.5408163265 + x = -0.61164937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5408163265' to each side of the equation. -0.5408163265 + 0.5408163265 + x = -0.61164937 + 0.5408163265 Combine like terms: -0.5408163265 + 0.5408163265 = 0.0000000000 0.0000000000 + x = -0.61164937 + 0.5408163265 x = -0.61164937 + 0.5408163265 Combine like terms: -0.61164937 + 0.5408163265 = -0.0708330435 x = -0.0708330435 Simplifying x = -0.0708330435

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.1524656965, -0.0708330435}

See similar equations:

| 10-1d=-34-5d | | (x+1)(y-2)= | | -(m+-9)=-2 | | -4.9x^2+280x+115=0 | | Y=-1/2x^2+3/2x+3 | | -28+6p=70 | | (2x-3)(x+3)=0 | | -6+t-1=6 | | 75=3+2x | | -(m+-9)=2 | | 5=11-6x | | 6+25=86 | | -(-10)=7 | | t=0.8-500+4650 | | (5t+9)-3t-13=2(11+t) | | -7(-4)(x-6)=4(x)-6 | | .7(x+10)+.1x=23 | | x+1/4-3x-1/8=x/2 | | 9-6x-5-8=6 | | -6-5m^2=-506 | | 3x(5)= | | -4(d+1)+2(d-2)=10/3 | | f(4)=2x+34(11-9) | | 8(-1+v)=56 | | x^2-14x-10=0 | | 3x+12+2x+8=90 | | 9m=8(q+7) | | 6(x+4)=3(2x+2)+18 | | (x+7)Xy=10 | | -m-24=5+m | | -m+24=5-m | | 2x(64-4)= |

Equations solver categories