Math, asked by anjuneerajsharma1988, 7 months ago

19. Expand using identity :(4x - 5) (4x + 1)

Answers

Answered by DibyenduChakraborty

3

(4x - 5) (4x + 1)

= 4x•4x + 4x•1 - 5•4x - 5•1

= 16x² + 4x - 20x - 5

= 16x² - 16x - 5.

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