293
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This is not a valid expression. Perhaps you mean x2 + x - 291?
This is a trinomial. Trinomials can often be factored, for example x2 +7x + 12 = (x+3)(x+4) since 3 times 4 is 12, and 3 plus 4 is 7.
In the given trinomial, 291 = 3 x 97 but 97 is prime. The trinomial can't be factored.
x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
x2 - 4
x2 - (2x)2 = x2 - 4x2 = -3x2 x2 - 2x2 = -x2
Y = X2 Inverse. Y = 1/X2 ======