5A^2-405=

Simple and best practice solution for 5A^2-405= 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 5A^2-405= equation:


Simplifying
5A2 + -405 = 0

Reorder the terms:
-405 + 5A2 = 0

Solving
-405 + 5A2 = 0

Solving for variable 'A'.

Move all terms containing A to the left, all other terms to the right.

Add '405' to each side of the equation.
-405 + 405 + 5A2 = 0 + 405

Combine like terms: -405 + 405 = 0
0 + 5A2 = 0 + 405
5A2 = 0 + 405

Combine like terms: 0 + 405 = 405
5A2 = 405

Divide each side by '5'.
A2 = 81

Simplifying
A2 = 81

Take the square root of each side:
A = {-9, 9}

See similar equations:

| .1x+x=780 | | 3x[4x-3(x+5)]+19=2(x-23) | | 2r=6r^4+r^3-7r^2-8r | | 5(4x+3)-(2x+7)=10 | | 40(p^2-1)=39 | | 5(2x+2)=5(x+3)+2x | | 2x-8=x-1 | | 3*[4x-3(x+5)]+19=2(x-23) | | 5(4-t)-(2-3t)=9 | | 3x-6=(-6) | | -5(7y+8)= | | 3t(3t)+2t-3=0 | | -2(3z+7)= | | 3x^2+3x+2= | | 5(x+5)-22= | | X^2-10n=0 | | y=-3(5+2x)-7 | | (4xq)+(12x(1-q))=(16xq)+(8x(1-q)) | | r+20=9r-4 | | 9S^2-49= | | y=-1+3(m+4) | | 22.8=18x | | (6y^2+5)+(-3y^2-8)= | | 0=-1x+3 | | -(3x+5)+(2x+6)+1=-5(x-1)+(3x+2)+3 | | x=.2(2*3.14*2x+3) | | 25S^2-121= | | y=3n+3(1+8n) | | y=-3p-(-8+4p) | | q(1)+(1-q)(-1)= | | 5x^4+25x+15=0 | | 3x^4+16x+9=0 |

Equations solver categories