Answer:
1 Use Difference of Squares:
a^2-b^2=(a+b)(a−b).
10(x^2-4^2)
2 Simplify 4^2 to 16
10(x^2 −16)
3 Expand by distributing terms.
10x^2 −160
Step-by-step explanation:
Hope dis helps and pls mark me as brainlist!!!
§ALEX§
Answer:
8:9 = eight to nine
Step-by-step explanation:
16:18 - divide each by 2 in order to simplify
= 8:9
X is 5. Hope this helps:)
Using the Pythagorean theorem we can solve for the radius
see attached picture: