Applying it's formula, the discriminant of the quadratic equation 2x + 5x² is given of 24.
A quadratic equation is modeled by:
The discriminant is:
In this problem, the equation is:
2x + 5x² = 1.
In standard form:
5x² + 2x - 1 = 0.
Hence the coefficients are a = 5, b = 2, c = -1, and the discriminant is given by:
.
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2y – 4x =
a. –10
b. –5
c. 5
d. 10
Answer:
-10
Step-by-step explanation:
x = 3
y = 5
3x^2 – 2y
= 3(3)^2 - 2(5)
=> 3(9) - 10 = 17
And 2x^2– 3y
=> 2(3)^2 - 3(5)
=> 2(9) - 15 = 3
17 - 3 = 14
This gives 3x^2 – 2y exceeding 2x^2– 3y by 17 - 3 = 14