Question

What is the solution for the equation 363-262-513-2?

5
2
?
Ob= -4 and b = 0
O b = -4
O b = 0 and b = 4
O b = 4

Answer 1

O b = 0 and b = 4

Explanation:

`{ \tt{ \frac{5}{ {3b}^(3) - {2b}^(2) - 5 } = \frac{2}{ {b}^(3) - 2} }} \\ \\ { \tt{5( {b}^(3) - 2) = 2( {3b}^(3) - 2 {b}^(2) - 5)}} \\ { \tt{5 {b}^(3) - 10 = 6 {b}^(3) - 4 {b}^(2) - 10 }} \\ { \tt{ {b}^(3) - {4b}^(2) = 0 }} \\ { \tt{b {}^(2) ( {b}-4) = 0 }}`

• Either b² or (b - 4) is zero

`{ \boxed{ \tt{b = 0 \: \: or \: \: b = 4}}}`