Find the smallest value of x such that x^2 + 10x + 25 = 49.
x2 + 10x + 25 = 49
Subtract 49 from both sides x2 + 10x – 24 = 0
Factor left side (x + 12)(x – 2) = 0
Set each factor to zero (x + 12) = 0
(x – 2) = 0
So x = –12 and x = +2 The smaller of these is x = –12
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