Wednesday

December 17, 2014

December 17, 2014

Posted by **bart** on Thursday, June 10, 2010 at 11:26pm.

36x2 - 12x + 1 = 0

How do I do this?

- Algebra HELP:( -
**Reiny**, Thursday, June 10, 2010 at 11:34pmthe discriminant is

b^2 - 4ac , namely the part under the √ sign of the quadratic formula

If it is positive, there are 2 different real solutions

if it is zero, there is one real answer

if it is negative, there are two complex solutions

If it is a perfect square, such as 36, there are 2 rational solutions.

so your discriminant

= 144 - 4(36)(1) = 0

mmmhhh?

- Algebra HELP. is this correct -
**bart**, Thursday, June 10, 2010 at 11:57pmso 36 is 6,6 so there are two solutions. Am I understanding this correctly

- Algebra HELP:( -
**drwls**, Friday, June 11, 2010 at 12:04amNo, you aren't understanding it. The discriminant is zero, as reiuny has shown, so there is only one solution.

36x^2 - 12x + 1 = (6x -1)^2 = 0

Note that the polynomial is a perfect square. The only answer is x = 1/6

**Answer this Question**

**Related Questions**

Algebra 2(quadratic) - Use the value of the discriminant to determine the number...

Algebra - Use the discriminant to determine how many real number solutions the ...

algebra - Use the discriminant to determine how many real-number solutions the ...

Discriminant - Use the discriminant to determine how many real-number solutions ...

intermediate algebra - 3x^2+9x+4=0 the discriminant is 33, using the ...

Math - Use the discriminant to determine how many real number solutions the ...

math - Use the discriminant to determine how many real-number solutions the ...

math - Use the discriminant to determine how many real-number solutions the ...

Algebra II - 1)What method(s) would you choose to solve the equation: x2 + 2x - ...

Algebra - Consider the equation: 4x^2 – 16x + 25 = 0 (a) Show how to compute the...