Question

Factorize 4a2-b2+2b-1

Answer 1

$\textsf{4 a^{2} - b^{2} + 2b - 1 }$
$\textsf{= 4 a^{2} - ( b^{2} - 2b + 1 )}$

= ( 2a )² - ( b - 1 )²

= [ 2a + ( b -1 )][ 2a - ( b -1 )]

= ( 2a + b - 1 )( 2a - b + 1 )

••••

Answer 2

Answer:2a2×2a-b×b+2b-1

Step-by-step explanation: