a^2+3a-35=0

Simple and best practice solution for a^2+3a-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+3a-35=0 equation:


Simplifying
a2 + 3a + -35 = 0

Reorder the terms:
-35 + 3a + a2 = 0

Solving
-35 + 3a + 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 + 3a + 35 + a2 = 0 + 35

Reorder the terms:
-35 + 35 + 3a + a2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + 3a + a2 = 0 + 35
3a + a2 = 0 + 35

Combine like terms: 0 + 35 = 35
3a + a2 = 35

The a term is 3a.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3a + 2.25 + a2 = 35 + 2.25

Reorder the terms:
2.25 + 3a + a2 = 35 + 2.25

Combine like terms: 35 + 2.25 = 37.25
2.25 + 3a + a2 = 37.25

Factor a perfect square on the left side:
(a + 1.5)(a + 1.5) = 37.25

Calculate the square root of the right side: 6.103277808

Break this problem into two subproblems by setting 
(a + 1.5) equal to 6.103277808 and -6.103277808.

Subproblem 1

a + 1.5 = 6.103277808 Simplifying a + 1.5 = 6.103277808 Reorder the terms: 1.5 + a = 6.103277808 Solving 1.5 + a = 6.103277808 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + a = 6.103277808 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + a = 6.103277808 + -1.5 a = 6.103277808 + -1.5 Combine like terms: 6.103277808 + -1.5 = 4.603277808 a = 4.603277808 Simplifying a = 4.603277808

Subproblem 2

a + 1.5 = -6.103277808 Simplifying a + 1.5 = -6.103277808 Reorder the terms: 1.5 + a = -6.103277808 Solving 1.5 + a = -6.103277808 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + a = -6.103277808 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + a = -6.103277808 + -1.5 a = -6.103277808 + -1.5 Combine like terms: -6.103277808 + -1.5 = -7.603277808 a = -7.603277808 Simplifying a = -7.603277808

Solution

The solution to the problem is based on the solutions from the subproblems. a = {4.603277808, -7.603277808}

See similar equations:

| X^2+30x+47=0 | | 60-5/3c=10 | | 10-z=17 | | x+5+x+5+x= | | 42000=Q+2000 | | 24y^4-20y^3=0 | | 6+(3-y)=10 | | 0=-16x^2+16t+370 | | 2ln(3y+1)=10 | | 3(x-4)+6=x+4 | | (-a-3)+17=20 | | 3=y+2x | | (X-5)(10-5x)=0 | | X+2x+1=11 | | v=-8i-5j | | 1/3×3.14.25^21 | | t^4+2t^3-t^2-8t+4=0 | | 25p^2-32=20 | | n^2+8n-48=0 | | 6x^2+31x-402=0 | | a^2+3a-24=0 | | 14m^2=10+31m | | 2ln(3x+1)=10 | | 0.07=sinx | | 8x-5=2(5.2x-4)-3(2x-2) | | 14x/d=y/d=7 | | 14x=y/d=7 | | 5x-63=x | | 0.15(x+2.95)=0.2x | | 12=20log(x/8) | | 5x-2=1-4 | | 7n^2-8=26n |

Equations solver categories