SOLUTION: How do I solve 100x^4=-400x^3+2100x^2 ?

Question 622284: How do I solve 100x^4=-400x^3+2100x^2 ?
Answer by matineesuxxx(27) (Show Source): You can put this solution on YOUR website!
bring everything to one side, factor out an and solve like a normal quadratic.
basically, this is what you do.

----> now in this step i noticed that if i factor out an x from the first bracket, and a -3 from the second bracket, then i would end up with an (x+7) as a common factor, so then i could do this:

therefore X= -7, 0, and 3
RELATED QUESTIONS
How do I solve and graph the equation... (answered by Edwin McCravy)

Please help me factor this completly. {{{-5x^5-50x^4-200x^3-400x^2-400x-160}}} Thank... (answered by Onmyoji.S)

solve the equation 4x^4 =... (answered by mananth)

HOW DO YOU FIND THE ANSWER TO... (answered by checkley77)

how do yo get the answer to... (answered by checkley77)

how do I graph the linear equation y = 100x - 3000... (answered by oscargut)

I am a college student returning to classes after a 3 year break. I sure have forgotten... (answered by kiru_khandelwal)

how do i solve x+3/4= 4... (answered by checkley75)