Jenny invests £400 for two years at 5% compound interest, paid yearly. Tim says that the interest Jenny will receive will be £40.
Is Tim right?
Explain your answer.

здрасти

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!