Math, asked by mnasir2, 2 months ago

use identity and solve (7y-3)(7y+3)
fast I'll mark as BRAINLIEST your answer

Answers

Answered by Mohanto

0

Answer:

√3/ 2√3 + √2

Step-by-step explanation:

(7y-3)(7y+3)

= 14y2 + 21y - 21y -9

= 14y2 - 9

=> y2 = 9/14

=> y = √3/ 2√3 + √2

Answered by chitrakandasamy2401

0

Answer:

( 7y - 3) (7y +3)

7y (7y+3) - 3 (7y+3 )

49y²+21y-3(7y+3)

49y²+21y-21y-9

49y²-9

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