Question 1126857
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Learn and memorize these simple rules:


1.  To multiply the vector ai + bj  by the scalar  "c", multiply by "c" every component:


    c*(ai + bj) = (ac)i + (bc)j.



2.  To add the vectors  (ai + bj)  and  (ci + dj) ,  add coefficients at co-named components:


    (ai + bj)  and  (ci + dj) = (a+c)i + (b+d)j.
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Now you know EVERYTHING what you need to do all these assignments on your own.


It is as simple as  2 x 2 = 4.



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