If x>2 then x2-x-6 =
x2-4
can you show with steps please thank you!
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If x>2 then x2-x-6 =
x2-4
can you show with steps please thank you!
Your question is a bit garbled. What's going on in the bottom line? Could you spell it out? (Or you can quickly look at the LaTeX forum.)Quote:
Originally Posted by someguy123
-Dan
sorry the xsquared - 4 is supposed to be directly under i dont know what happened so xsquared-x-6/xsquared-4
Yes and there is something after "=" ?
no thats whats supposed to be figured out
well notice that x²-4=(x-2)(x+2), from here come the idea that 2 or -2 is a zero of x²-x-6. In fact -2 is a zero, so x²-x-6=(x+2).Q(x), and Q(x) is some polynomial, after computation q(x)=x-3.
So the answer is (x-3)/(x-2)
@someguy123: Be sure you understand why we have to have x > 2. (Actually x can be anything but 2, but let's stick to the original.)
-Dan