SOLUTION: witch is the following is a linear factor ? 2x square -x-6? if 2x+2 is ggreater or equal 5x+11 then? if x square -2x-8 then x is what?

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Question 654121: witch is the following is a linear factor ?
2x square -x-6?

if 2x+2 is ggreater or equal 5x+11 then?

if x square -2x-8 then x is what?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
a linear factor ?
2x%5E2+-x-6......Replace -1x with 3x-4x
2x%5E2+%2B3x-4x-6...group
%282x%5E2+-4x%29%2B%283x-6%29
2x%28x+-2%29%2B3%28x-2%29
%282x%2B3%29%28x-2%29.....linear factors


if 2x%2B2%3E=+5x%2B11...=>...0%3E=+5x%2B11-2x-2...=>...0%3E=+3x%2B9..=>...0%3E=+3%28x%2B3%29..=>...0%2F3%3E=+x%2B3..=>...-3%3E=+x%29


if x%5E2+-2x-8 then x is
x%5E2+-2x-8=0....Replace -2x with -4x%2B2x
x%5E2+-4x%2B2x-8=0
%28x%5E2+-4x%29%2B%282x-8%29=0
x%28x+-4%29%2B2%28x-4%29=0
%28x%2B2%29%28x-4%29=0
solutions:
if x%2B2=0....=>.....x=-2
if x-4=0....=>.....x=4