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and 
is equal to the sum of 
.
and 
.
.
and the sum of the numbers 
and 
is equal to the sum of 
.
and 
and the sum of 
.
and 8.
?
.
and 
subtract twice the difference of the numbers 
and 
.
and 
to five times the product of the sum and difference of the numbers 
and 
and 
subtract three times the product of the sum and difference of numbers 
and 
. If possible, factorize the resulting expression.
and the number 
is equal to the square of the difference of the numbers 
and 
