kelmarlVidricketh kelmarlVidricketh

23-06-2016
Mathematics

Answered

x^2 - 9x -10 =0 has a discriminant of: a. 121 b. 72 c. -359 d. 41 e. 136

Verified Answer :

23-06-2016

In the standard form of quadratic
\(ax^{2} +bx+c\)
the discriminant is
\(b^{2} -4ac\)
In your quadratic, a = 1, b = -9 and c = -10
Now you need to plug these values into the expression for the discriminant.

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