cos^2(x)+4cos(x)-3=0

Simple and best practice solution for cos^2(x)+4cos(x)-3=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 cos^2(x)+4cos(x)-3=0 equation:


Simplifying
cos2(x) + 4cos(x) + -3 = 0

Multiply cos2 * x
cos2x + 4cos(x) + -3 = 0

Multiply cos * x
cos2x + 4cosx + -3 = 0

Reorder the terms:
-3 + 4cosx + cos2x = 0

Solving
-3 + 4cosx + cos2x = 0

Solving for variable 'c'.

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

Add '3' to each side of the equation.
-3 + 4cosx + 3 + cos2x = 0 + 3

Reorder the terms:
-3 + 3 + 4cosx + cos2x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 4cosx + cos2x = 0 + 3
4cosx + cos2x = 0 + 3

Combine like terms: 0 + 3 = 3
4cosx + cos2x = 3

Reorder the terms:
-3 + 4cosx + cos2x = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 4cosx + cos2x = 0

The solution to this equation could not be determined.

See similar equations:

| 19+b=33 | | 11x+1=1+x | | 2(4)+2y=8 | | -45+36=1+-10 | | 2(2)+2y=8 | | 9(y+2)=8y | | sin^2(x)-4sin(x)-1=0 | | 9z+10-5z=8+3z-4 | | 5(y-7)-3=2-3(y-7) | | 9(x-8)+2=4x | | -4(x+3)+6=6(x+2)+6 | | X=3-12y^2 | | 5z-8=6z-7 | | 6b-8b=22 | | y=3-12x^2 | | y=3-13x^2 | | (8-7i)(7-3i)= | | -3(x+7)=-2x-6 | | 32x+8=24x-16 | | 2I-(12-6I)= | | -3(5-2a)=3(a-4) | | 6x+2=10x-8 | | 2p-7=-22+5p | | 5y-15=-3+7y | | x^3-11x=4x^2+30 | | -4(6n-3)=-4(5+7n) | | 32x+32=24x-16 | | -(-8-7v)-5=-8+7v | | 0.30x+0.70(100)=0.50(100+x) | | b-5(-4-3b)=5(5b+4) | | 0.8z+0.2(z+0.4)=-1.74 | | -8(7x-4)=-4(x-8) |

Equations solver categories