Solve using the Square Root Property u^2+3u-10=0

Math
u2+3u-10=0
Factor u2+3u-10 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 -10 and whose sum is 3.
-2,5
Write the factored form using these integers.
(u-2)(u+5)=0
(u-2)(u+5)=0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.
u-2=0
u+5=0
Set the first factor equal to 0 and solve.
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Set the first factor equal to 0.
u-2=0
Add 2 to both sides of the equation.
u=2
u=2
Set the next factor equal to 0 and solve.
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Set the next factor equal to 0.
u+5=0
Subtract 5 from both sides of the equation.
u=-5
u=-5
The final solution is all the values that make (u-2)(u+5)=0 true.
u=2,-5
Solve using the Square Root Property u^2+3u-10=0

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