Asked by Jasmin
What is the value of the descriminant of 2x2-13x-7=0? And what can you learn to know about the roots from that value?
Answers
Answered by
Anonymous
For the equation ax²+bx+c, the discriminant is the expression b²-4ac, which amounts to
(-13)²-4*2*(-7)
=169+56
=225
=15²
The fact that the discriminant is a perfect square means that solutions are integers/rational numbers, which also means that there are two distinct real rational factors/roots.
(-13)²-4*2*(-7)
=169+56
=225
=15²
The fact that the discriminant is a perfect square means that solutions are integers/rational numbers, which also means that there are two distinct real rational factors/roots.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.