Question
48. How many real numbers satisfy x^6+|x|=7?
Answers
Damon
that is always + because even power is + so if we find a plus x, its negative mate will also work
x^6 + x = 7
x(x^5 + 1)= 7
if 0<x<1 no way
if x = 2, way too big
so between 1 and 2
1.2 ---> 4.18
1.3 ---> 6.12
So there is one between 1 and 2 that works, and its negative mate
so two
x^6 + x = 7
x(x^5 + 1)= 7
if 0<x<1 no way
if x = 2, way too big
so between 1 and 2
1.2 ---> 4.18
1.3 ---> 6.12
So there is one between 1 and 2 that works, and its negative mate
so two
Mikia
X > 10 how many numbers satisfy