3b^2-7b-21b+49=0

Simple and best practice solution for 3b^2-7b-21b+49=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 3b^2-7b-21b+49=0 equation:


Simplifying
3b2 + -7b + -21b + 49 = 0

Reorder the terms:
49 + -7b + -21b + 3b2 = 0

Combine like terms: -7b + -21b = -28b
49 + -28b + 3b2 = 0

Solving
49 + -28b + 3b2 = 0

Solving for variable 'b'.

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

Subproblem 1

Set the factor '(7 + -3b)' equal to zero and attempt to solve: Simplifying 7 + -3b = 0 Solving 7 + -3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3b = 0 + -7 -3b = 0 + -7 Combine like terms: 0 + -7 = -7 -3b = -7 Divide each side by '-3'. b = 2.333333333 Simplifying b = 2.333333333

Subproblem 2

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

Solution

b = {2.333333333, 7}

See similar equations:

| 18/z=9 | | 15+49.45x=51.95x | | -2+7c-3=8c-9 | | 141+-14w=967 | | 18-x=x+16 | | 4x-7-11=2x+5 | | 4f-(-213)=773 | | x-3(2x-7)+8=19 | | .75*6.25= | | x+50+3x+10=360 | | 2x-60=1/5x | | 0.2-7=3 | | 29-25v=904 | | 1x+89=3x+11 | | -3(-5y+1)-5y=2(y-1)-7 | | -4b+10=-10-2b | | x^2+26x+c=8+c | | 2/3j-2/9 | | 10n+3=13n | | 28=t(r+u) | | -4g-5=-10-3g | | (3x+17)+(5x-5)+80=180 | | 12/y=4 | | 3/10x12 | | t/-9=9 | | 9x-6+82=2 | | 2m-10=7m+5 | | u=b+k+a | | 3x+3x+12+2x=180 | | 14=0.5n-5 | | 2(2x-4)+5=(-7)+3(2x+1) | | 5/9=h/24 |

Equations solver categories