Identify each expression that is a factor of this polynomial: 5i2-15i+10  the 2 is an exponent

answer choices

(i-2)
(5+15i)
5
(i+2)
(i-1)
(i+1)

What kind of bond pays interest which is exempt from tax?

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.