Solve Using the Square Root Property x^2-3x-4=0

Math
x2-3x-4=0
Factor x2-3x-4 using the AC method.
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Consider the form x2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is -4 and whose sum is -3.
-4,1
Write the factored form using these integers.
(x-4)(x+1)=0
(x-4)(x+1)=0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.
x-4=0
x+1=0
Set the first factor equal to 0 and solve.
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Set the first factor equal to 0.
x-4=0
Add 4 to both sides of the equation.
x=4
x=4
Set the next factor equal to 0 and solve.
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Set the next factor equal to 0.
x+1=0
Subtract 1 from both sides of the equation.
x=-1
x=-1
The final solution is all the values that make (x-4)(x+1)=0 true.
x=4,-1
Solve Using the Square Root Property x^2-3x-4=0

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