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Andrews [41]
4 years ago
11

(11z2+4z-6)+(4z-7+12z2)+(-8+13z2+4z)​

Mathematics
1 answer:
natta225 [31]4 years ago
6 0

Answer: 36z^2+12z-21

Step-by-step explanation:

 You need to remember the multiplication of signs:

(+)(+)=+\\(+)(-)=-\\(-)(-)=+

In order to simplify the given the expression:

 (11z^2+4z-6)+(4z-7+12z^2)+(-8+13z^2+4z)

You must distribute signs:

=11z^2+4z-6+4z-7+12z^2-8+13z^2+4z

And finally, you must add the like terms:

=36z^2+12z-21

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