Friday

February 27, 2015

February 27, 2015

Posted by **Shreya** on Saturday, January 7, 2012 at 10:29pm.

(2x-3)(2x+1)-(4x-1) = (0)(x-3)(2x-3)

4x^2+2x-6x-3-4x-1 = 2x^2-3x-6x+9

4x^2-4 = 2x^2-3x-6x+9

-2x^2-9x+13

i put this in quadratic formula and i think it wrong becaue i get 9/2 and 0for x and it have to be 2/3.

- math-calculus -
**Reiny**, Saturday, January 7, 2012 at 11:38pmYour first line should have been

(2x-3)(2x+1)-(4x-1)(x-3) = (0)(x-3)(2x-3)

4x^2 - 4x - 3 - (4x^2 -13x + 3) = 0

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

9x = 6

x = 6/9 = 2/3

- math-calculus -
**Shreya**, Sunday, January 8, 2012 at 4:37pmthank you very much reiny :)

**Answer this Question**

**Related Questions**

math-calculus - 30/x^2-25 = 3/x-5-2/x+5 i be left with 30 = 3x^2-75-2x^2+50 i ...

algebra - Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to ...

GRADE 12 PHYSICS AGAIN - it has been 2 hours, can't someone please help me? I ...

Math x-int's - How do I algebraically find the x-intercepts for this equation y...

math-calculus - x-1/x+1 = 2x/15 (15)(x-1) = (2x)(x+1) 2x^2-15x+17 do i put this ...

Math: Homework Check! - Can you check to see if my answers are correct. If ...

Trig - give the missing value: sin 54.2=? -->i think its 0.811 but i might be...

math-calculus - solve equation |x^2-2x-6| using quadratic formula. i not get how...

Life Science - Im doing 7th grade life science. (im 13.) I need to make sure my ...

Calculus (Math 2A) - express the function in the form f * g g(x) = cube-root (x/...