What is the following product?

(5 startroot 2 endroot minus 4 startroot 3 endroot) (5 startroot 2 endroot minus 4 startroot 3 endroot)
–2
2
22 – 40 startroot 6 endroot
98 – 41 startroot 6 endroot

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax