Question

what is the value of the discriminant of the equation x^2-9x-10=0

Answer 1

The discriminant of \(ax^2+bx+c\) is \(\sqrt{b^2+4ac}\).

Identify \(a,b,c\) for this quadratic and plug them in.

Answer 2

The discriminant is b² - 4ac.

Answer 3

The discriminant is b² - 4ac.

b² - 4ac = (-9)² - 4*(1)*(-10) = ? @thanhuyenlebich

Answer 4

@thanhuyenlebich, disregard the square root. My mistake. Thanks for clearing up @Directrix