Mathematics: 2. What number am I? a. I am a four-digit number b. My hundreds digit is 8 c. The difference between my hundreds digit and my ones digit is 1 d. My thousands digit is one quarter of my hundreds digit

2. What number am I? a. I am a four-digit number

bonnysvalentine

05.06.2023

Answer : The discriminant is equal to 0, which means the equation has one real number solution.

The given quadratic equation is -2x^2 = -8x + 8

To find discriminant we use formula D= b^2 - 4ac

When D >0, the equation has two real solutions.

when D <0, the equation has two complex solutions

When D=0, the equation has one real solution.

First we write the equation in the form of ax^2 + bx+c=0

-2x^2 = -8x + 8

-2x^2+8x-8=0 , a= -2, b=8, c=-8

Now we need to calculate D to find the number of solutions.

Discriminant D= b^2 - 4ac=(8)^2-4*(-2)(-8) =0

D=0 so, the equation has one real solution.

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