Brackets around the product.
If a multi-term expression contains a product then we do not have to put brackets around the product.
If a multi-term expression contains a product then we do not have to put brackets around the product.
If a multi-term expression contains a product then we do not have to put brackets around the product.
If a multi-term expression contains a product then we do not have to put brackets around the product.
If a multi-term expression contains a product then we do not have to put brackets around the product.