2w^2-4=7w

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


Simplifying
2w2 + -4 = 7w

Reorder the terms:
-4 + 2w2 = 7w

Solving
-4 + 2w2 = 7w

Solving for variable 'w'.

Reorder the terms:
-4 + -7w + 2w2 = 7w + -7w

Combine like terms: 7w + -7w = 0
-4 + -7w + 2w2 = 0

Factor a trinomial.
(-1 + -2w)(4 + -1w) = 0

Subproblem 1

Set the factor '(-1 + -2w)' equal to zero and attempt to solve: Simplifying -1 + -2w = 0 Solving -1 + -2w = 0 Move all terms containing w to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2w = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2w = 0 + 1 -2w = 0 + 1 Combine like terms: 0 + 1 = 1 -2w = 1 Divide each side by '-2'. w = -0.5 Simplifying w = -0.5

Subproblem 2

Set the factor '(4 + -1w)' equal to zero and attempt to solve: Simplifying 4 + -1w = 0 Solving 4 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1w = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1w = 0 + -4 -1w = 0 + -4 Combine like terms: 0 + -4 = -4 -1w = -4 Divide each side by '-1'. w = 4 Simplifying w = 4

Solution

w = {-0.5, 4}

See similar equations:

| -5(2x-1)+3=-12 | | p-4=9+p | | 10-5(3x+1)=5(x-4) | | 5Y=3Y+9 | | -22=5x+7 | | 2(x+8)=-2 | | 5y=-2y-25 | | 22=5+7 | | 95x=-6+202 | | 3(5x+4)+5x=-8 | | 3x^2-32=x | | -8(x-8)=-2x+46 | | p-2=5p+3p-8 | | 3x+13=8x-3 | | 12y+15=6y-15 | | p-2=5p+3p | | 15-x=4 | | 1=7+3w | | 3(m+4)+8=2+n | | 46-6b=-29b | | 3x^2+16x+12=0 | | (3n+8)(2n-6)=0 | | a-2=6 | | -12y-10=-6y+4 | | 16r^2-8r+10=0 | | 4x^3-10x+3=0 | | 5m=20 | | (34*0.60)+(x*0.40)= | | x(2x-5)=0 | | 9y-13=95 | | 16a-5a=11a | | 9+9+9+9+9+9+9=7n |

Equations solver categories