(x-1)^4 = (x-1)²(x-1)²=
=(x²-2x+1)(x²-2x+1)
& now you should know how to continue
3 times 4 is equal to 12
8 times 4 is equal to 32
therefore 3:8 is equal to 12:32
hope this helps
Answer:
False
Step-by-step explanation:
Answer:
Step-by-step explanation:
Since the whole right side of that triangle is equal to 28 and the lower portion is 21, then we know the upper portion is 7. Set up a proportion using those sides and the fact that the 2 triangles are similar:
and cross multiply to get
21x = 126 and
x = 6