Question

Please answer this question
kindly don't spam.​

Answer 1

Answer:

c prt

Step-by-step explanation:

49x² - b = [7x+1/2 ] [7x-1/2]

49x² - b= {( a+b) ( a-b) = ( a²-b²) }

49x² - b= (7x)²-(1/2)²

49x² - b= 49x²-1/4

- b = 49x² - 49x²-1/4

-b = -1/4 ( 49 x square and - 49 x square are cut as they are of different signs )

b= 1/4

Hope it hepls uu thnku pls like

Answer 2

Answer:

b is correct I think so