Question

Half of the product of two consecutive numbers is 105. Which equation can be used to solve for n, the smaller of the two numbers?

n2 + n – 210 = 0
n2 + n – 105 = 0
2n2 + 2n + 210 = 0
2n2 + 2n + 105 = 0

Answer 1

@MARC_ @AnnalieseBronz

Answer 2

@Michele_Laino

Answer 3

n*(n+1)=105
n^2+n-105=0

Answer 4

B