Answer:
66
Step-by-step explanation:
5x2= 10
7x8= 56
10+56= 66
yesssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
You would use division.
You would do division because 5m is multiplication and to solve this problem you have to use the inverse of multiplication
Because the square root of 49 is seven, you now have to squared values that can be used
So 1-7^2c^2
And now, because of the negative, you will have
(1-7c)(1+7c)