7=-2w^2+9w

Simple and best practice solution for 7=-2w^2+9w 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 7=-2w^2+9w equation:


Simplifying
7 = -2w2 + 9w

Reorder the terms:
7 = 9w + -2w2

Solving
7 = 9w + -2w2

Solving for variable 'w'.

Reorder the terms:
7 + -9w + 2w2 = 9w + -9w + -2w2 + 2w2

Combine like terms: 9w + -9w = 0
7 + -9w + 2w2 = 0 + -2w2 + 2w2
7 + -9w + 2w2 = -2w2 + 2w2

Combine like terms: -2w2 + 2w2 = 0
7 + -9w + 2w2 = 0

Factor a trinomial.
(1 + -1w)(7 + -2w) = 0

Subproblem 1

Set the factor '(1 + -1w)' equal to zero and attempt to solve: Simplifying 1 + -1w = 0 Solving 1 + -1w = 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 + -1w = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1w = 0 + -1 -1w = 0 + -1 Combine like terms: 0 + -1 = -1 -1w = -1 Divide each side by '-1'. w = 1 Simplifying w = 1

Subproblem 2

Set the factor '(7 + -2w)' equal to zero and attempt to solve: Simplifying 7 + -2w = 0 Solving 7 + -2w = 0 Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2w = 0 + -7 -2w = 0 + -7 Combine like terms: 0 + -7 = -7 -2w = -7 Divide each side by '-2'. w = 3.5 Simplifying w = 3.5

Solution

w = {1, 3.5}

See similar equations:

| N=5st^4-2sx | | 7r^2=-3r | | 5z^2=-4z | | 3w+7=21 | | 14=5b | | f-x=-x^2+9(-x)-3 | | 6=-5r^2 | | -9=-8s^2 | | 12x+9(2x+5)= | | 4W^2+4w=-5 | | 2=-9v^2+6v | | 8y+8=5y-4 | | 7T^2=-6 | | 2(3a+2a*6a-4a)=7a+5 | | C=(5/9)(F=32) | | C=5/9(F=32) | | 9a-15=57 | | 4x^2-3=61 | | 744*x=5.84 | | g(x)=2x^2-5x-1 | | 6*2-(-6)= | | z=-2/2 | | (-9/5)^2 | | 5u+8=-3u | | 162k+28=882-63k | | 27x=36 | | 6xsquared-7=157 | | 5x^3+2x^2-5x+6=924 | | 5x^3+2xz^2-5x+6=924 | | 28-4y=16 | | (1/3)[x-1]=1 | | 1/3[x-1]=1 |

Equations solver categories