Question

Please answer it's urgent!!!!
Do Ques no. 7....

Answer 1

(i) (19+18) (19-18)
= (37) (1)
= 37

( ii ) (30+29) (30-29)
= (59) (1)
= 59

Answer 2

♧hi all

♧we know that
${x}^{2} - {y}^{2} = (x + y)(x - y)$
♤x = 19

♤y = 18

♧substituting values of x and y , we get,

☆(19 + 18)(19 - 18)

☆(37)(1)

☆=37

♧given= 30^2 - 29^

♤x = 30

♤y = 29

☆(30 + 29)(30 - 29)

☆(59)(1)

☆= 59

○ hope this helps
○mark as brainliest ♡♡♡♡♡♡