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What is the anwser to a2-a-12=0

User Alag
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The given equation is:


a^2-a-12=0

Rewrite a as -4a+3a, where the product of the coefficients of a is equal to the constant of the equation, -12:


\Rightarrow a^2-4a+3a-12=0

Factorize the expression on the left:


undefined

User DejaVuSansMono
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