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Heya!!!
( y + 2/7 y² ) × ( 7y - y² )
=>
y ( 1 + 2/7y ) × y ( 7 - y )
=>
y² { 1 + (2/7)y × ( 7 - y ) }
=>
y² { 7 - y + 2y - 2y²/7 }
=>
y² { y + 7 -2y²/7 }
VERIFICATION FOR y = 3
( y + (2/7)y² ) × ( 7y - y² ) = y² { y+7-2y²/7}
=>
( 3 + 18/7 ) × ( 21 - 9 ) = 9 { 10 - 18/7}
=>
12 ( 21 + 18 ) /7 = 9 { (70-18)/7 }
=>
12 { 39 } /7 = 9 ( 52 /7 )
=>
468/7 = 468/7
HENCE VERIFIED for y = 3
( y + 2/7 y² ) × ( 7y - y² )
=>
y ( 1 + 2/7y ) × y ( 7 - y )
=>
y² { 1 + (2/7)y × ( 7 - y ) }
=>
y² { 7 - y + 2y - 2y²/7 }
=>
y² { y + 7 -2y²/7 }
VERIFICATION FOR y = 3
( y + (2/7)y² ) × ( 7y - y² ) = y² { y+7-2y²/7}
=>
( 3 + 18/7 ) × ( 21 - 9 ) = 9 { 10 - 18/7}
=>
12 ( 21 + 18 ) /7 = 9 { (70-18)/7 }
=>
12 { 39 } /7 = 9 ( 52 /7 )
=>
468/7 = 468/7
HENCE VERIFIED for y = 3
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