Answer:
120
Explanation:
In a general quadratic Ax² + Bx + C, the discriminant is:
B² - 4AC
8² - 4(-7)(2)
64 + 56
The discriminant is
b^2 -4ac
where a is the coefficient of x^2 b is the coefficient of x and c is the constant
-7x^2 + 8x + 2
a = -7 b = 8 and c = 2
(8)^2 -4(-7) (2)
64 - -56
64+56
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