7r^2-58r+63=0

Simple and best practice solution for 7r^2-58r+63=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 7r^2-58r+63=0 equation:


Simplifying
7r2 + -58r + 63 = 0

Reorder the terms:
63 + -58r + 7r2 = 0

Solving
63 + -58r + 7r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(9 + -7r)(7 + -1r) = 0

Subproblem 1

Set the factor '(9 + -7r)' equal to zero and attempt to solve: Simplifying 9 + -7r = 0 Solving 9 + -7r = 0 Move all terms containing r to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7r = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7r = 0 + -9 -7r = 0 + -9 Combine like terms: 0 + -9 = -9 -7r = -9 Divide each side by '-7'. r = 1.285714286 Simplifying r = 1.285714286

Subproblem 2

Set the factor '(7 + -1r)' equal to zero and attempt to solve: Simplifying 7 + -1r = 0 Solving 7 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1r = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1r = 0 + -7 -1r = 0 + -7 Combine like terms: 0 + -7 = -7 -1r = -7 Divide each side by '-1'. r = 7 Simplifying r = 7

Solution

r = {1.285714286, 7}

See similar equations:

| log(3x-5)=3 | | 14y-6x=240 | | 5a+6b+7c= | | 2(4x)-8=-16 | | 12+22x=46 | | 6x+14y=240 | | 2x^2+17x+36= | | 7.5r+4.3=4.1+8.4 | | x+1-3x+1=5 | | 2a-6/2a-4 | | 2(25x)=-100 | | 6x-3-2(2x+1)+1=x | | 2x+3x+9=539 | | 2(2x-8)+10x= | | 9-1x=3x-3(2x-3) | | 4(x+8)-5=-11 | | 3w-5=w+14 | | x+(x+3)+(2x+1)=5x+2 | | 2x-2(x+3)+2+3=x | | 2y=-24-6 | | 7x+5=8x+9 | | 240+6x=14y | | 25x^3+20x^2=0 | | 1-2x+7x=3(2x+1) | | 17+x+26=-42 | | 2x-10=y+20 | | 5x+0.15=750 | | 3(x-3)-x-3+14=x | | 7y+33(y-5)=3(y+1)-2 | | 6x-3=37-4x | | 4/9x=278 | | x+1.34=2 |

Equations solver categories