I'm pretty sure you are looking for factored forms as an equivalent equation, so here is how you do it.
This equation would be solved by difference of squares. 16, x^4, and 81 are all perfect squares ( which means that it is a number multiplied by itself, 16 is 4 x4 for example). So the first thing you want to do is recall the formula which is
(a^2 - b^2) = (a - b)*(a + b)
(16x^4 - 81)= 0
Find the sq. root of 16 which is 4, and of x^4 which is x^2, and 81 which is 9. Now re write it in the (a - b)*(a + b) format. ----> (4x^2 - 9)*(4x^2 + 9) = 0
Answer:
7
Step-by-step explanation:
Add 1 to six and u get seven.
0.69771896736 ounces because
19.78 g / 28.34952= 0.69771896736 oz
C) work was required by an outside force.
Opposites attract, while same sides repel. This means that two South Pole ends would repel unless they were pushed together by an outside force.
Answer:

Common ratio between successive terms


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