Question

$(2x + {3y)}^{2} - 16 {z}^{2}$
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Answer 1

Answer:

What to do

Step-by-step explanation:

Simplify or add or what arithmetic operation

Please post the question again correctly and properly

Answer 2

(2x +3y)^2-16z^2
=(4x^2+9y^2)-256z^2
=(13xy^2)-256z^2
=13xy^2+256z^2
=269xyz^2