Step-by-step explanation:
304
plug 4 in for x
3(4)^2 + 4(4)^3 = 304
48 + 256 = 304
Answer:
They are 7 and 11. 11 + 7 = 18, 11 - 7 = 4.
260,880 as (2 times 100,000)+(6 times 10,000)+(8 times 100).
here Sophia must consider 80 as 8 times 10
so that complete expression becomes
260,880 = (2 times 100,000)+(6 times 10,000)+(8 times 100)+(8 times 10)
