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Jaycee Curtis
Mathematics
3 September, 04:05
X^2 - 4
Find the roots
+2
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1
)
Amiyah Arellano
3 September, 04:25
0
Write the polynomial as an equation.
y=x^2-4
To find the roots of the equation, replace y with 0 and solve.
0=x^2-4
Replace y with 0 and solve for x
X^2-4=0
Add 4 to both sides of the equation
X^2=4
Take the square root of both sides of the equation to eliminate the exponent on the left side.
X = ±√4
The complete solution is the result of both the positive and negative portions of the solution.
X=2,-2
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