2007-10-01 17:47:41 · 6 answers · asked by curzon17 1 in Science & Mathematics ➔ Mathematics
x^2+9 is already in simplified form
2007-10-01 17:52:41 · answer #1 · answered by espms290 4 · 0⤊ 0⤋
You can write it as x²+9 = (x+3i)(x-3i) where i is the unit imaginary number. But if you haven't had imaginary and complex numbers yet, then there is no way to simplify it with real-valued functions.
Doug
2007-10-01 18:01:51 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋
no, you cannot simplify x^2+9...
2007-10-01 17:58:35 · answer #3 · answered by criselda 3 · 0⤊ 0⤋
If you are working in complex numbers, and are not limited only to real numbers, then
(x + 3i)(x - 3i)
is your answer. "i" is an imaginary number equal to the square root of -1.
2007-10-01 17:54:02 · answer #4 · answered by discover425 2 · 0⤊ 0⤋
a^2 - b^2 = (a-b)^2
you cant simplify a^2 + B^2
2007-10-01 17:51:46 · answer #5 · answered by Andy T 2 · 0⤊ 1⤋
you can't. the expression is not a perfect square.
2007-10-01 17:52:47 · answer #6 · answered by Groggy G 3 · 0⤊ 0⤋