$\"\"$

The sentence is “6 times the sum of x and y squared minus 3 times the sum

of x and y squared.

The word “times” indicates multiplication and the symbol is $\"\"$ .

The word “minus” represents the symbol $\"\"$ . \ \

$\"\"$

The algebraic expression is $\"\"$ .

$\"\"$

$\"\"$ (Distributive Property: a (b + c) = ab + ac)

$\"\"$ (Simplify)

$\"\"$ (Commutative Property of addition) \ \

$\"\"$ (Distributive Property: a (b + c) = ab + ac)

$\"\"$ (Subtract: $\"\"$ ) \ \

$\"\"$

The simplified expression is $\"\"$ .