Try another version of this question Compute: `4*[(3,-7),(-6,9)] + 3*[(3,-7),(10,1)]` `[(42,-98),(28,70)]` `[(6,-14),(4,10)]` `[(21,-49),(6,39)]` `[(13,-7),(11,17)]` Get help: VideoBox 1: Select the best answer `[(21,-49),(6,39)]`
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Get help: Video
Box 1: Select the best answer