(5+x)x=6^2
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5x+x^2=36
x^2+5x-36=0
(x+9 ) (x-4) = 0
x = -9, x = 4
(probably reject -9 since it is negative)
so x = 4 is the final answer
x^2+5x-36=0
(x+9 ) (x-4) = 0
x = -9, x = 4
(probably reject -9 since it is negative)
so x = 4 is the final answer
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x can be -9 or it can be 4. Both are solutions to the equation.