SOLUTION: How would I solve 12b to the second power, minus 8b=0 ? Step by step please.. I really want to learn how to do this.

Question 293678: How would I solve 12b to the second power, minus 8b=0 ?
Step by step please.. I really want to learn how to do this.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
How would I solve 12b to the second power, minus 8b=0 ?
:
12b^2 - 8b = 0
:
Factor out 4b and you have:
4b(3b - 2) = 0
:
Two solutions
4b = 0
b = 0/4
b = 0
and
3b - 2 = 0
add 2 to both sides:
3b = 2
divide both sides by 3
b =
:
Check solutions in original problem
we know b=0 will satisfy the equation
:
check b =
12(2/3)^2 - 8(2/3) = 0
12(4/9) - 16/3 = 0
48/9 - 16/3 = 0
Reduce the fraction 48/9
16/3 - 16/3 = 0
;
Did this help you learn this?

RELATED QUESTIONS
The area of a rectangular window is to 306 square centimeters. If the length exceeds the... (answered by mananth)

solve for the zeros or roots of this polynomial equation n(x)= x^2+2 divided by 2... (answered by Fombitz)

-3(x+10-x/2+3/2<0 Solve for x. I need step by step so I can learn how to do the... (answered by ReadingBoosters)

Solve by the elimination method 7r-5s=2 5r+ 7s = 86 I really want to see how to... (answered by ankor@dixie-net.com)

solve for the zeros or roots of this polynomial equation r(x)= (x-7)^2 times (x^2+7) (answered by jim_thompson5910)

solve for the zeros or roots of this polynomial equation g(x)= x^2-6x+8 Please... (answered by jim_thompson5910)

solve for the zeros or roots of this polynomial equation k(x)= x-(1/x) Please... (answered by ankor@dixie-net.com)

solvefor the zeros or roots of this polynomial equation q(x)=1-5x+6x^2 Please... (answered by KnightOwlTutor)

I need to learn how to solve them step by... (answered by Mathtut)