63r^2+42r+7=0

Simple and best practice solution for 63r^2+42r+7=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 63r^2+42r+7=0 equation:


Simplifying
63r2 + 42r + 7 = 0

Reorder the terms:
7 + 42r + 63r2 = 0

Solving
7 + 42r + 63r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '7'.
7(1 + 6r + 9r2) = 0

Factor a trinomial.
7((1 + 3r)(1 + 3r)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(1 + 3r)' equal to zero and attempt to solve: Simplifying 1 + 3r = 0 Solving 1 + 3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3r = 0 + -1 3r = 0 + -1 Combine like terms: 0 + -1 = -1 3r = -1 Divide each side by '3'. r = -0.3333333333 Simplifying r = -0.3333333333

Subproblem 2

Set the factor '(1 + 3r)' equal to zero and attempt to solve: Simplifying 1 + 3r = 0 Solving 1 + 3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3r = 0 + -1 3r = 0 + -1 Combine like terms: 0 + -1 = -1 3r = -1 Divide each side by '3'. r = -0.3333333333 Simplifying r = -0.3333333333

Solution

r = {-0.3333333333, -0.3333333333}

See similar equations:

| 6+4(1-x)=3(x+1) | | 8e^12x=18 | | 3x+3.6=9 | | bx+r=sx | | x^2+8x-3=6 | | 0.24(12)+0.06x=0.12(12)+x | | 58=2B-2 | | 4x+12=14+2x | | b-9+6b=300 | | 3(3v+3)=36 | | 5(5t-3)=-35 | | (3z+8)(4+z)= | | 14=3R-1 | | -16t^2+12t+0=h | | 3x^2-6x-135=0 | | 9n-3+n=x | | 7b-4=2b+17 | | x+2y=320 | | y=3x^2-6x-135 | | 4.2(y-4)-.6y=-13.2 | | .11pm+1.5=2.49 | | 2(4x-1)-(3x-5)=12x-11 | | 1/3h-4(2/3h-3)=2/3h-3 | | 1500x=750000 | | 200=300-(p+t) | | abs(9X-1)=14X-2 | | 200=300-100+t | | 6(n)-14=3(n)+7 | | Cos(x)=0.2 | | x-11=x+20 | | 3x-16y=-19 | | 2x+8y=84 |

Equations solver categories