multiplythe binomial and verify the results for given values (1/5ab-3)×(1/2ab-5) a=1,b=-1
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Given:
A = 1
B = -1
1/5 ab-3 x 1/2 ab-5
Substituting the values of a and b
So ,
=> 1/5(1)(-1) -3 x 1/2 (1)(-1)-5
=> 1/5 (-1) -3 x 1/2 (-1) -5
=> 1/5 (-1-3) x 1/2 (-1-5)
=> 1/5 (-4 ) x 1/2 (-6)
=> 1/5 (-4) x 1/1 (-3) Cancelling 2&6
=> 1/5 x -4 x 3
=> -4 x 3 / 5
= -12/5
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A = 1
B = -1
1/5 ab-3 x 1/2 ab-5
Substituting the values of a and b
So ,
=> 1/5(1)(-1) -3 x 1/2 (1)(-1)-5
=> 1/5 (-1) -3 x 1/2 (-1) -5
=> 1/5 (-1-3) x 1/2 (-1-5)
=> 1/5 (-4 ) x 1/2 (-6)
=> 1/5 (-4) x 1/1 (-3) Cancelling 2&6
=> 1/5 x -4 x 3
=> -4 x 3 / 5
= -12/5
Mark me as Brainlyest
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