Question

The discriminant of 5x²-2x-10=0 is

Answer 1

Step-by-step explanation:

Factoring 5x2-2x-10

The first term is, 5x2 its coefficient is 5 .

The middle term is, -2x its coefficient is -2 .

The last term, "the constant", is -10

Step-1 : Multiply the coefficient of the first term by the constant 5 • -10 = -50

Step-2 : Find two factors of -50 whose sum equals the coefficient of the middle term, which is -2 .

-50 + 1 = -49

-25 + 2 = -23

-10 + 5 = -5

-5 + 10 = 5

-2 + 25 = 23

-1 + 50 = 49

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored