eddie820 eddie820

03-04-2019
Mathematics

contestada

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

Respuesta :

quidditchbeater quidditchbeater

03-04-2019

Answer:

-19i + 26j

Step-by-step 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

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