1.

Factories the equation 63z^2-18z-1

Answer»

63z^{2} - 18z - 1

/*SPLITTING MIDDLE TERM,we GET*/

= 63z^{2} - 21z + 3z - 1 \}= 21z( 3z - 1 )+1( 3z - 1) \}= ( 3z - 1 )( 21z + 1 )

THEREFORE.,

\red{ Factors \:of \: 63z^{2} - 18z - 1}

\green {= ( 3z - 1 )( 21z + 1 )}

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