Find the roots of the quadratic equation:
x^2-3x-10=0
thanks, I don't knoe how to explain to my neice how to do these. any help would be great.
2006-11-28 09:35:35 · 3 answers · asked by pirsimone 1 in Education & Reference ➔ Homework Help
For ax2 + bx + c = 0, the value of x is given by:
x = [ -b ± sqrt(b^2 - 4ac) ] / 2a
Note: You will have two answers.
2006-11-28 09:44:29 · answer #1 · answered by Random Person 4 · 0⤊ 0⤋
factor it, find two numbers that multiply to -10 and add to -3. such as -5 and 2/ so it would be (x-5)(x+2)=0.
2006-11-28 17:38:46 · answer #2 · answered by FeEeF 2 · 0⤊ 1⤋
maybe try looking it up on schoolnotes.
to get there type in schoolnotes.com in the browser box thing, then type in your zip code, then find her math teacher's name, then it might give you an example of how to do it.
2006-11-28 17:45:04 · answer #3 · answered by ? 1 · 0⤊ 0⤋