It can't be factorised because the numbers must be the same but one minus and one plus (eg. -2 and 2) to cancel out x, but you can't get a positive number at the end of the equation when you multiply a minus number by a positive number.
By the way, ^ means to the power of something. Like 4^2 means 4 squared.
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^ means raised to....like 3^2 means 3 raised to 2 which is 9.
your question:
it can't be factorized if you're looking for real number answers.
otherwise, the answer is (x+4i)(x-4i).....
x = 4i, -4i
It can't be factorised because the numbers must be the same but one minus and one plus (eg. -2 and 2) to cancel out x, but you can't get a positive number at the end of the equation when you multiply a minus number by a positive number.
By the way, ^ means to the power of something. Like 4^2 means 4 squared.
X^2+16 cannot be factored. (^ means to the power)
It cannot be factored because it is a sum of squares, not a difference.
This cannot be factored. If it was x^2-16 it would be able to be factored.
(x+4)(x+4)
it can no be factored in real numbers.
x² + 16=x² + 16
But it can be factored in complex ( imaginary ) numbers
x² + 16=(x-2i)(x+2i)
yes, it can. Six.