Algebra

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Algebra

Solve by factoring: 144s - 36 = 0

S=   ,    
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Re: Algebra

You probably mean 144s² - 36 = 0
(12s + 6)(12s - 6) = 0   {factored the difference of two squares}
12s + 6 = 0   or   12s - 6 = 0   {set each factor equal to zero}
12s = -6   or   12s = 6   {subtracted 6 and added 6}
s = -1/2   or   s = 1/2   {divided each side of each equation by 12}

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