Which expression goes in the box to make the equation true (7+3) times (5+3) = (9+1) times ? what goes in the box
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3(7+5)= 10
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so basically the expression is
(7+3)(5+3)
so there is an identity we use here
which is
(x+a)(x+b)= (x2) + (a+b)x + ab
3 is x here as its common
a = 7
b = 5
so to get ( 9+1)
( a+b)x
and so,
(5+7)3
HOPE IT HELPS :)
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