40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
Answer:
a exponent 2-b exponent 2
ab
Answer:
578
Step-by-step explanation:
118 + 560 = 678
678 - 100 = 578
578 is your answer
Answer:
16x^2 - 64
Step-by-step explanation:
(4x − 8)(4x + 8)
We recognize that this is the difference of squares
(a-b) (a+b) = a^2 - b^2
=(4x)^2 - 8^2
=16x^2 - 64
