Math, asked by raju8159, 1 year ago

simplify the expression( 4√5-3√2)(3√5+5√2)

Answers

Answered by javed12345
76
(4√5-3√2)(3√5+5√2)
=4√5(3√5+5√2)-3√2(3√5+5√2)
=12×5+20√10-9√10-15√4
=60+20√10-9√10-15×2
=60+20√10-9√10-60
=60-60+20√10-9√10
=20√10-9√10
=11

javed12345: sorry i was confused
Answered by Anonymous
65
hi dear

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( 4√5 - 3√2 ) ( 3√5 + 5√2 )

= 4√5 ( 3√5 + 5√2 ) - 3√2 ( 3√5 + 5√2 )

= 12×5 + 20× √10 - 9×√ 10 - 15× 2

= 60 + 20√10 - 9√10 - 30

= 60 - 30 + 20√10 - 9√10

= 30 + 20√10 - 9 √10

= 30 + 11√10


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