how would you factor x squared -28x -75?

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how would you factor x squared -28x -75?

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2007-09-06 17:32:43 · 3 answers · asked by The Prophyt 2 in Science & Mathematics ➔ Mathematics

3 answers

Should be + 75 perhaps ??

x ² - 28 x + 75 = (x - 25) (x - 3)

2007-09-06 21:56:47 · answer #1 · answered by Como 7 · 3⤊ 0⤋

Trial and error! Write

(x ) (x ).
What are the factors of 75? How about 25 and 3? Also, note 75 is negative, so they have opposing signs.

Try (x -25)(x+3). Checks out, except the middle term is wrong. ASSUMING you wrote the problem right, this can NOT be factored!

2007-09-06 17:45:40 · answer #2 · answered by Anonymous · 0⤊ 1⤋

I'm pretty sure that that one doesn't factor evenly.

Checked it on my TI-89 Titanium. It said the same thing. Though both of us might be wrong.

2007-09-06 17:43:58 · answer #3 · answered by www 2 · 0⤊ 0⤋