Question

(4b2 + 2b + 1)(4b2 – 2b - 1)

Answer 1

SOLUTION

TO SIMPLIFY

$\sf{(4 {b}^{2} + 2b + 1 )(4 {b}^{2} - 2b + 1 )}$

EVALUATION

$\sf{(4 {b}^{2} + 2b + 1 )(4 {b}^{2} - 2b + 1 )}$

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

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

$\sf{ =16 {b}^{4} + 8 {b}^{2} + 1 - 4 {b}^{2} }$

$\sf{ =16 {b}^{4} + 4 {b}^{2} + 1}$

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