g^2-20g=-49

Simple and best practice solution for g^2-20g=-49 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 g^2-20g=-49 equation:


Simplifying
g2 + -20g = -49

Reorder the terms:
-20g + g2 = -49

Solving
-20g + g2 = -49

Solving for variable 'g'.

Reorder the terms:
49 + -20g + g2 = -49 + 49

Combine like terms: -49 + 49 = 0
49 + -20g + g2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + -20g + -49 + g2 = 0 + -49

Reorder the terms:
49 + -49 + -20g + g2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + -20g + g2 = 0 + -49
-20g + g2 = 0 + -49

Combine like terms: 0 + -49 = -49
-20g + g2 = -49

The g term is -20g.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20g + 100 + g2 = -49 + 100

Reorder the terms:
100 + -20g + g2 = -49 + 100

Combine like terms: -49 + 100 = 51
100 + -20g + g2 = 51

Factor a perfect square on the left side:
(g + -10)(g + -10) = 51

Calculate the square root of the right side: 7.141428429

Break this problem into two subproblems by setting 
(g + -10) equal to 7.141428429 and -7.141428429.

Subproblem 1

g + -10 = 7.141428429 Simplifying g + -10 = 7.141428429 Reorder the terms: -10 + g = 7.141428429 Solving -10 + g = 7.141428429 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + g = 7.141428429 + 10 Combine like terms: -10 + 10 = 0 0 + g = 7.141428429 + 10 g = 7.141428429 + 10 Combine like terms: 7.141428429 + 10 = 17.141428429 g = 17.141428429 Simplifying g = 17.141428429

Subproblem 2

g + -10 = -7.141428429 Simplifying g + -10 = -7.141428429 Reorder the terms: -10 + g = -7.141428429 Solving -10 + g = -7.141428429 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + g = -7.141428429 + 10 Combine like terms: -10 + 10 = 0 0 + g = -7.141428429 + 10 g = -7.141428429 + 10 Combine like terms: -7.141428429 + 10 = 2.858571571 g = 2.858571571 Simplifying g = 2.858571571

Solution

The solution to the problem is based on the solutions from the subproblems. g = {17.141428429, 2.858571571}

See similar equations:

| 2(7-x)-4x=20 | | 7x+3y=6-5 | | 6(3x+10)=18x-3 | | 5j-12+15+3-j=10 | | -28=-5+8(x-7) | | an=65-100 | | 5x-2x+2= | | 13x+23y=-29 | | 7p-10=-8p+4p | | -x+4y-7x+8y+(3x)-2y= | | (x-4)(x^2-5x+3)= | | -7.2x+2=0.8x+4.5 | | 2(6-A)=-5A-9 | | 2x+2=-13-3 | | -3(m-2n)=5mn | | =5b-3b | | p=6-2qgraph | | -2(m+8)=-3(27-m) | | j^2+28j-11=0 | | w=x+5v | | 6z-12=30 | | 11x-6=5(2x+4)-14 | | 1.4x+11=1.9x+7.5 | | -6x+11-3x=-33 | | 4m^2+9m+3=0 | | 9x+4=9x+1 | | 0.25(12x+4)-14+4x=8 | | 6a+2b+5a-6b= | | 2(x+2)-8x=64 | | k^2-4k=43 | | y+(-7)=-19 | | 7n-4(5-2x)=10 |

Equations solver categories