4w^2-7w+1=0

Simple and best practice solution for 4w^2-7w+1=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 4w^2-7w+1=0 equation:


Simplifying
4w2 + -7w + 1 = 0

Reorder the terms:
1 + -7w + 4w2 = 0

Solving
1 + -7w + 4w2 = 0

Solving for variable 'w'.

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

Divide each side by '4'.
0.25 + -1.75w + w2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + -1.75w + -0.25 + w2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + -1.75w + w2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + -1.75w + w2 = 0 + -0.25
-1.75w + w2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
-1.75w + w2 = -0.25

The w term is -1.75w.  Take half its coefficient (-0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
-1.75w + 0.765625 + w2 = -0.25 + 0.765625

Reorder the terms:
0.765625 + -1.75w + w2 = -0.25 + 0.765625

Combine like terms: -0.25 + 0.765625 = 0.515625
0.765625 + -1.75w + w2 = 0.515625

Factor a perfect square on the left side:
(w + -0.875)(w + -0.875) = 0.515625

Calculate the square root of the right side: 0.718070331

Break this problem into two subproblems by setting 
(w + -0.875) equal to 0.718070331 and -0.718070331.

Subproblem 1

w + -0.875 = 0.718070331 Simplifying w + -0.875 = 0.718070331 Reorder the terms: -0.875 + w = 0.718070331 Solving -0.875 + w = 0.718070331 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + w = 0.718070331 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + w = 0.718070331 + 0.875 w = 0.718070331 + 0.875 Combine like terms: 0.718070331 + 0.875 = 1.593070331 w = 1.593070331 Simplifying w = 1.593070331

Subproblem 2

w + -0.875 = -0.718070331 Simplifying w + -0.875 = -0.718070331 Reorder the terms: -0.875 + w = -0.718070331 Solving -0.875 + w = -0.718070331 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + w = -0.718070331 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + w = -0.718070331 + 0.875 w = -0.718070331 + 0.875 Combine like terms: -0.718070331 + 0.875 = 0.156929669 w = 0.156929669 Simplifying w = 0.156929669

Solution

The solution to the problem is based on the solutions from the subproblems. w = {1.593070331, 0.156929669}

See similar equations:

| -11x-14=-80 | | -42=8+5x | | 9(b-90)=81 | | RU=T*(R+C) | | -2-7+8-11= | | Y^2=4y+1 | | 7(u+8)=98 | | 4.7x+3=15 | | 3(6x-5(y-1))=3 | | 8-0.25x=0.5x+0.6 | | 5/4(18)=x | | 4x-56xy+9=0 | | 19=-5x-5 | | f(x)=3e^3x | | 4x+29=x+2 | | 12x^2-11x-24=0 | | X=FR*(F+B) | | 14-3r=8 | | -2x+36=x+15 | | -2x+55=2x+23 | | (X/3)-8=1 | | (9/8)*x^4-x^3-(1/4)*x^3-(x^4-x^3)*ln(x) | | X+9x-129=41 | | x-5=3x+13 | | rU=F*(R+B) | | B+3h=486 | | -8x-3.8=-3x-7 | | 9f+18-f=106 | | 4u-16=44 | | 2x+8=-8+x+1+8 | | 7x=-(4-x) | | -2(3k+6)-3k=-66 |

Equations solver categories