Thursday
April 24, 2014

Homework Help: maths

Posted by sydney on Thursday, December 21, 2006 at 2:50am.

how do i change x^2-4x-32=0 into (x+4)(x-8)=0

x^2-4x-32=0
=> x^2-8x+4x-32=0
=> x(x-8)+4(x-8)=0
=> (x-8)(x+4)=0
OR (x+4)(x-8)=0

X2 -4x -32 = 0
JUst factor it. It factors into
(X-8)(X+4)=0

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Derivatives - What is the fourth derivative of f(x)= e^-x^2. I got f''(x)=-2e^-x...
math - how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 ...
Algebra - Two more Algebra questions : Drawing a blank on this one, not sure ...
Algebra - Two more Algebra questions : Having some difficulty with these. ...
Math - does y=11-x ,for x makje x=y+11? -8-14=6 7.4=x-13 answer 6.1 m/m for m =...
algebra - does y=11-x ,for x makje x=y+11? -8-14=6 7.4=x-13 answer 6.1 m/m for m...
Math - Can you correct the errors? 4(x+3)=24 4(3x)=24 12x=24 12x/12= 24/12 X=2 5...
math, please somebody help me - Given the function f(x) = x4 , and suppose g(x) ...
math inequalities - I wrote a question before but the greater than or equal to ...
math - which expression is equivalent to 3/4x-24. It imultiple choice a 1/4(3x-...

Search
Members