Find the Discriminant 8x^2-2x+1=0

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Algebra

$8 x^{2} - 2 x + 1 = 0$

The discriminant of a quadratic is the expression inside the radical of the quadratic formula.

$b^{2} - 4 (a c)$

Substitute in the values of $a$ , $b$ , and $c$ .

${(- 2)}^{2} - 4 (8 \cdot 1)$

Evaluate the result to find the discriminant.

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Simplify each term.

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Raise $- 2$ to the power of $2$ .

$4 - 4 (8 \cdot 1)$

Multiply $8$ by $1$ .

$4 - 4 \cdot 8$

Multiply $- 4$ by $8$ .

$4 - 32$

Subtract $32$ from $4$ .

$- 28$

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Name

Name	one billion six hundred twenty-one million five hundred ten thousand one hundred seventy-nine

Interesting facts

1621510179 has 8 divisors, whose sum is 2275803840
The reverse of 1621510179 is 9710151261
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6

Name

Name	one billion six hundred eight million one hundred two thousand eight hundred eighty-seven

Interesting facts

1608102887 has 4 divisors, whose sum is 1622334000
The reverse of 1608102887 is 7882018061
Previous prime number is 113

Basic properties

Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5

Name

Name	three hundred forty-five million eight hundred seventeen thousand two hundred two

Interesting facts

345817202 has 16 divisors, whose sum is 522818712
The reverse of 345817202 is 202718543
Previous prime number is 317

Basic properties

Is Prime? no
Number parity even
Number length 9
Sum of Digits 32
Digital Root 5

Factor x^2-4

Evaluate log base 9 of 27

Evaluate 5/12

Simplify (3-2i)(3+2i)

Find the Inverse y = log of x-8