An expanded partnership deal and a $2 billion investment raised confidence in this company's long-term growth prospects.Shares in Synopsys (SNPS +0.65%) rose by 11.7% last week. There's little doubt as to the reason why: the announcement of an expanded strategic partnership with Nvidia, which involved Nvidia investing $2 billion in Synopsys stock. Synopsys goes for growth.The deal makes perfect sense for Synopsys' long-term growth aspirations, which center on its silicon-to-systems approach. The "silicon" p ...