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4 votes
If a = 5i - 6j and b = -2i + 4j , find -3a + 2b

User Ayhan
by
8.1k points

1 Answer

6 votes

Answer:

-19i + 26j

Explanation:

-3 (5i - 6j) + 2 (-2i + 4j)

Distribute/multiply the -3 to everything in the parentheses

-15i + 18j + 2 (-2i + 4j)

Distribute/multiply the 2 to everything in the parentheses

-15i + 18j -4i + 8j

Combine like terms

-19i +26j

User Jayna
by
8.4k points

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