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3 years ago

14

What is the discriminant of 9x2 + 2 = 10x?

2 answers:

Gwar [14]3 years ago

6 0

First get the equation into the form: Ax^2 + Bx + C = 0 (the quadratic equation).. We do this by subtracting 10x both sides (to get it on the other side).. 9x^2 + 2 = 10x 9x^2 - 10x + 2 = 10x - 10x 9x^2 - 10x + 2 = 0 Now the discriminant is: b^2 - 4ac The quadratic equation is Ax^2 + Bx + C = 0 Here, A = 9, B = -10 and C = 2 so plug them in... (-10)^2 - 4 (9)(2) = 100 - 4 (18) = 100 - 72 = 28 <--- answer...

DerKrebs [107]3 years ago

3 0

Answer:

28

Step-by-step explanation:

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