Question

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

Answer 1

$63z^{2} - 18z - 1$

/*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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Answer 2

Step-by-step explanation:

63z²-18z-1

=63z²-21z+3z-1

=21z(3z-1)+1(3z-1)

=(21z+1)(3z-1)