What is the discriminant of the quadratic equation -5x^(2)-6x-9=0 ? 144 216 -144 -216

Identify Coefficients: The discriminant of a quadratic equation ax^2 + bx + c = 0 is given by the formula D = b^2 - 4ac. We need to identify the coefficients a, b, and c from the given quadratic equation and then calculate the discriminant.Substitute Values: Identify the coefficients from the quadratic equation -5x^2 - 6x - 9 = 0. Here, a = -5, b = -6, and c = -9.Calculate Discriminant: Substitute the values of a, b, and c into the discriminant formula D = b^2 - 4ac. So, D = (-6)^2 - 4(-5)(-9).Calculate the discriminant: D = 36 - 4(5)(9) = 36 - 180 = -144.

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What is the discriminant of the quadratic equation
-5x^(2)-6x-9=0 ?
144
216

-144

-216

What is the discriminant of the quadratic equation $-5 x^{2}-6 x-9=0$ ? $\newline$ $144$ $\newline$ $216$ $\newline$ $-144$ $\newline$ $-216$

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Q. What is the discriminant of the quadratic equation

-5 x^{2}-6 x-9=0

\newline

144

\newline

216

\newline

-144

\newline

-216

Identify Coefficients: The discriminant of a quadratic equation $ax^2 + bx + c = 0$ is given by the formula $D = b^2 - 4ac$ . We need to identify the coefficients $a$ , $b$ , and $c$ from the given quadratic equation and then calculate the discriminant.
Substitute Values: Identify the coefficients from the quadratic equation $-5x^2 - 6x - 9 = 0$ . Here, $a = -5$ , $b = -6$ , and $c = -9$ .
Calculate Discriminant: Substitute the values of $a$ , $b$ , and $c$ into the discriminant formula $D = b^2 - 4ac$ . So, $D = (-6)^2 - 4(-5)(-9)$ .
Calculate Discriminant: Substitute the values of $a$ , $b$ , and $c$ into the discriminant formula $D = b^2 - 4ac$ . So, $D = (-6)^2 - 4(-5)(-9)$ .Calculate the discriminant: $D = 36 - 4(5)(9) = 36 - 180 = -144$ .