Simplify the expression
(3k^2+2)(k+5^2)
answers
3k^3 + 17k^2 + 10k
8k^4 + 3k^3 +8k^2 + 2k
8k^4 + 3k^3 + 10k^2 + 2k
15k^4 + 3k^3 + 10k^2 + ²k

(3k^2+2)(k+5^2)
so first simplify the 5^2 = 25

so (3k^2+2)(k+25)
now open the brackets : 
3k^3 + 75k^2 + 2k + 50

are you sure that the question has been copied exactly? as none of the options are correct in this case 

than do 23.50 times 18 and then divide your answer by 100 than you will get x.