Question

determine between which consecutive intergers one or more real zeros of f(x)= x^3+x^2-5 are located
a) 2 and 3
b) 1 and 2
c) -2 and -1
d) -1 and 0

Answer 1

b

Answer 2

how did u get that??

Answer 3

f(1) = -3 <0
f(2) = =7 >0
definitely between them , we have a root