Help me with 8 please, I will give Brainliest

Use the matrix-column representation of the product to write each column of ab as a linear combination of the columns of a.

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

Find the difference (8ab+a+2) - (3ab+6)