r^2+2r-63=

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


Simplifying
r2 + 2r + -63 = 0

Reorder the terms:
-63 + 2r + r2 = 0

Solving
-63 + 2r + r2 = 0

Solving for variable 'r'.

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

Subproblem 1

Set the factor '(-9 + -1r)' equal to zero and attempt to solve: Simplifying -9 + -1r = 0 Solving -9 + -1r = 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 + -1r = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1r = 0 + 9 -1r = 0 + 9 Combine like terms: 0 + 9 = 9 -1r = 9 Divide each side by '-1'. r = -9 Simplifying r = -9

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 = {-9, 7}

See similar equations:

| x+7/8=5/9 | | -(3x+6)=-24 | | n+3=n*2-10 | | 1.5(4q-5)=0.9 | | f(x)=8x+15 | | 7r^2+33r-10=0 | | -2(x-2)=24 | | f(t)=1500(1.074) | | 5x^2-12=11x | | d*35=67014 | | 80-x+1=20x-10-20x+25 | | 7x-3(2-x)=10 | | 4(4-x)=20 | | 2x+7(1)=1 | | 2x^3-1x^2-8x-4=0 | | 10n-95=80 | | 17.7+19.6=27.8 | | r^2+5r-24= | | w^10+6w^5+5= | | 0.07*150000*1-0.07=x | | -203-11x+21x=277 | | 25.2=x+1.10x | | X+4X=3X+54 | | 49z^3=1 | | 0.07*150000*1-0.07= | | 0=4x^2-34x+5 | | 2(-3.5y+.5)-4y=12 | | x-111+4x=74 | | 5(x+5)+2=-9(x-5)-3 | | 5(x+7)=6(2+c) | | 14y+4=21y+5 | | 2.3(x+1.4)=-9.6 |

Equations solver categories