A^2-b^2=(a+b)(a-b)
1: x^2-4=(x+2)(x-2)
2: (x+8)(x-8)
3: (x+10)(x-10)
4: (x+14)(x-14)
Answer:
2774
Step-by-step explanation:
start by multiplying 2 by 7, the answer is 14 put the 1 above the 8 in 1387 then put the 4 under the equation, similar to addition. repeat but next time when you multiply 2 by 8 add the 1 (from the previous multiplication) to the answer under and put the 1 from 17 on top of the 3. you get it?
You know that 3 times 2 is 6 so 30'times 20 equals 60
Answer:
D
Step-by-step explanation:
it is a graph of 
Answer:
Fiona will jogged 1,080 feet
Step-by-step explanation:
180 x 2 = 360 yards
360 x 3 = 1,080 feet