a^2-10a-35=0

Simple and best practice solution for a^2-10a-35=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 a^2-10a-35=0 equation:


Simplifying
a2 + -10a + -35 = 0

Reorder the terms:
-35 + -10a + a2 = 0

Solving
-35 + -10a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '35' to each side of the equation.
-35 + -10a + 35 + a2 = 0 + 35

Reorder the terms:
-35 + 35 + -10a + a2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + -10a + a2 = 0 + 35
-10a + a2 = 0 + 35

Combine like terms: 0 + 35 = 35
-10a + a2 = 35

The a term is -10a.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10a + 25 + a2 = 35 + 25

Reorder the terms:
25 + -10a + a2 = 35 + 25

Combine like terms: 35 + 25 = 60
25 + -10a + a2 = 60

Factor a perfect square on the left side:
(a + -5)(a + -5) = 60

Calculate the square root of the right side: 7.745966692

Break this problem into two subproblems by setting 
(a + -5) equal to 7.745966692 and -7.745966692.

Subproblem 1

a + -5 = 7.745966692 Simplifying a + -5 = 7.745966692 Reorder the terms: -5 + a = 7.745966692 Solving -5 + a = 7.745966692 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + a = 7.745966692 + 5 Combine like terms: -5 + 5 = 0 0 + a = 7.745966692 + 5 a = 7.745966692 + 5 Combine like terms: 7.745966692 + 5 = 12.745966692 a = 12.745966692 Simplifying a = 12.745966692

Subproblem 2

a + -5 = -7.745966692 Simplifying a + -5 = -7.745966692 Reorder the terms: -5 + a = -7.745966692 Solving -5 + a = -7.745966692 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + a = -7.745966692 + 5 Combine like terms: -5 + 5 = 0 0 + a = -7.745966692 + 5 a = -7.745966692 + 5 Combine like terms: -7.745966692 + 5 = -2.745966692 a = -2.745966692 Simplifying a = -2.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. a = {12.745966692, -2.745966692}

See similar equations:

| x/2*100=700 | | 4+2x=68-x | | 97+4(-9v+100)=-100-99-6V | | 2k^4(4K)= | | (7^(1/4))*(7^-2/3)) | | 97+4(-9v+100)=-100-99-6w | | (-2w^2+4w^2-4)+(-2w^2-4w^2-7)-(-6w^2-5w+5)= | | 2m^2(2m^3)= | | 2e-1=7 | | 6(65.79+54u)=-9(-43.9u-47.81) | | 32=-4x-4 | | 4y^2+4x-7=0 | | 8(4r+67)=54-9(-4r-94) | | 54=2b | | 8x-10=4x+58 | | (75-h)3=6 | | -2.06-2(-15.7y+19.51)=7(8.6y+16.76) | | 4+3q=13 | | m/4-2=1 | | 3m^2-1=8m | | 3a^2+11a-4= | | 0=4000-25x | | 20-3q=8 | | 2(13.5n+19.96)-18n=-6.7n-19.04+2.3n | | f(x)=x^9ln(7x) | | L=xby | | -4t-6(13t+6)=6(-16t+1) | | V=6*14*9 | | 3z-8(-3z-20)=-20+17z-20 | | -36=6(2-8r) | | 3a=12-7a-8 | | -15.11+2(19.5b-17.54)=-3(-15.4b-17.83) |

Equations solver categories