Answer:
18x
Step-by-step explanation:
18x times 18x
so the side is 18x because it was squared
The slope for A is 2/5 and the slope for B is -2/6
Das is difference of 2 perfect squares
remember
a^2-b^2=(a-b)(a+b)
so
25x^4=(5x^2)^2
16y^2=(4y^2)
(5x^2)^2-(4y)^2=(5x^2-4y)(5x+4y)
cannot be factored further