Monday

March 2, 2015

March 2, 2015

Posted by **Veronica** on Tuesday, November 10, 2009 at 5:31pm.

- math/ college algebra -
**Reiny**, Tuesday, November 10, 2009 at 5:40pmI think you mean

(√(4x))^4 + 8x^3 - 13x^2 - 2x + 3

which is

16x^2 + 8x^3 - 13x^2 - 2x + 3

= 8x^3 + 3x^2 - 2x + 3

Now what about it?

What do want done with it?

- math/ college algebra -
**Veronica**, Tuesday, November 10, 2009 at 5:44pmI need the roots of 4x^4+8x^3-13x^2-2x+3

- math/ college algebra -
**Reiny**, Tuesday, November 10, 2009 at 5:54pmRead your first line, can you see how it can be misinterpreted?

so let

f(x) = 4x^4+8x^3-13x^2-2x+3

try x = ±1, ±3

f(1) = 0, so x-1 is a factor,

I then used synthetic division to show that

4x^4+8x^3-13x^2-2x+3 = (x-1)(4x^3 + 12x^2 - x - 3)

but (4x^3 + 12x^2 - x - 3)

= 4x^2(x+3) - (x+3)

= (x+3)(4x^1 - 1)

= (x+3)*2x-1)(2x+1)

so for

4x^4+8x^3-13x^2-2x+3 = 0

(x-1)x+3)(2x+1)(2x-1) = 0

x = 1, -3, ±1/2

**Answer this Question**

**Related Questions**

college - let i = the square root of -1 with i to the 1st power =i, i to the 2nd...

Algebra - Factor each of following expressions x (4th power) - x (3rd power) - ...

Math/Standard and scientific notation - Express each measure in standard form. (...

Intermediate Algebra - for the polynomial function h(x)=2x to the 4th power-x to...

Intermediate Algebra - add or subtract the following polynomials as indicated (5...

algebra - how do I evaluate 2x to the 4th power + 2 x to the 3rd power + x to ...

math - what is (x to the 3rd power + x to the 2nd power) divided by ((x+4)(X-4...

Math - Write the following number in standard form (4X10 4th power)+(3X10 3rd ...

algebra - 7s over 5t to the negative 3rd power 2 to the negative 3rd power times...

math - The question that have is to simplify and write the answer in ...