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0=(-4+(-1x^2))
We move all terms to the left:
0-((-4+(-1x^2)))=0
We add all the numbers together, and all the variables
-((-4+(-1x^2)))=0
We calculate terms in parentheses: -((-4+(-1x^2))), so:We get rid of parentheses
(-4+(-1x^2))
We calculate terms in parentheses: +(-4+(-1x^2)), so:We get rid of parentheses
-4+(-1x^2)
determiningTheFunctionDomain (-1x^2)-4
We get rid of parentheses
-1x^2-4
Back to the equation:
+(-1x^2-4)
-1x^2-4
Back to the equation:
-(-1x^2-4)
1x^2+4=0
We add all the numbers together, and all the variables
x^2+4=0
a = 1; b = 0; c = +4;
Δ = b2-4ac
Δ = 02-4·1·4
Δ = -16
Delta is less than zero, so there is no solution for the equation
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