-w^2+7w=70

Simple and best practice solution for -w^2+7w=70 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 -w^2+7w=70 equation:


Simplifying
-1w2 + 7w = 70

Reorder the terms:
7w + -1w2 = 70

Solving
7w + -1w2 = 70

Solving for variable 'w'.

Reorder the terms:
-70 + 7w + -1w2 = 70 + -70

Combine like terms: 70 + -70 = 0
-70 + 7w + -1w2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
70 + -7w + w2 = 0

Move the constant term to the right:

Add '-70' to each side of the equation.
70 + -7w + -70 + w2 = 0 + -70

Reorder the terms:
70 + -70 + -7w + w2 = 0 + -70

Combine like terms: 70 + -70 = 0
0 + -7w + w2 = 0 + -70
-7w + w2 = 0 + -70

Combine like terms: 0 + -70 = -70
-7w + w2 = -70

The w term is -7w.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7w + 12.25 + w2 = -70 + 12.25

Reorder the terms:
12.25 + -7w + w2 = -70 + 12.25

Combine like terms: -70 + 12.25 = -57.75
12.25 + -7w + w2 = -57.75

Factor a perfect square on the left side:
(w + -3.5)(w + -3.5) = -57.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5+11x=5555+x | | 4X^2-20X=100 | | 5+11x=555+x | | 3[3-(-4x-4)]=24x+33 | | 15+11x=1111+x | | 1+55x=1111+x | | -6(-8z-1+10c)= | | x-(x*.28)=20000 | | 12r-19r=35 | | 1+11x=555+x | | 1+10x=1111+x | | 11+11x=1111+x | | 6x+7-8(x+1)=3x+2 | | 2222=24 | | 1111=5 | | 1+11x=1111+x | | 6+11x=111+x | | 5+11x=111+x | | (7+3i)(5+2i)= | | 1+11x=155+x | | 5+11x=144+x | | h=-16t^2+150t+110 | | 4+11x=111+x | | y-4=5/9(x-4) | | .125x+8=-3 | | 11x+-1x=10x | | sin(8x)=7 | | 6=7sin(8x) | | log(3x)=35 | | 1/8x+8=3 | | 4x^2-4xy-3y^2/2x^2-xy-3y^2 | | 0.1x-0.1(5x)=0.6 |

Equations solver categories