If A=((-3, x),(2y, 0)) and B=((4, 6),(-3, 1)), what is A-B?

1 Answer
Mar 10, 2018

A-B = ((-7, x-6), (2y+3, -1))

Explanation:

In a matrix problem like this, all you have to do is subtract each element of B from the corresponding element in A.

In other words,

((-3, x), (2y, 0)) - color(blue)(((4, 6), (-3,1)))

is the same thing as

((-3-color(blue)4, x-color(blue)6), (2y-(color(blue)(-3)), 0-color(blue)1))

Simplifying each statement gives us our answer.

((-7, x-6), (2y+3, -1))