Answer:
-20
Step-by-step explanation:
20 Below -> -20
Think of it as a vertical number line, where sea level is 0. Anything above is positive, and anything below is negative.
I think 140 is the answer
(355*7)+2
=-2,487
(92*7)+4
648
2,487-648
1839/7
=262 and 5/7
Hopefully this helps you
It's not the difference of squares, rather it is the square of a difference. That leaves a perfect square trinomial, which narrows your selection to two choices. An expression with 2 terms is not a trinomial, so that further narrows your selection. The appropriate choice is
... (4xy -3z)² = 16x²y² -24xyz +9z², a perfect square trinomial
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The expression you have in your problem statement has no z term, so none of the choices is applicable to that one.
