Can anyone please help me solve this with proper and easy to get explanation. Thanks
{(20+5)*(20-5)}/5
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[ 20 + 5][ 20 - 5 ] / 5
= [ 20^2 - 5^2 ] / 5 .........as [ a + b ] [ a -b ] = a^2 - b^2
= 400 - 25 / 5 = 375 / 5 = 75.
= [ 20^2 - 5^2 ] / 5 .........as [ a + b ] [ a -b ] = a^2 - b^2
= 400 - 25 / 5 = 375 / 5 = 75.
Answered by
1
(25*15)/5
= 375/5
= 75
= 375/5
= 75
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