work out the y^3 + 5y when y = 2

Answer :

Step-by-step explanation:

y³ + 5y

2³ + 5 × 2

8 + 10

18...

Hi!

[tex]\diamondsuit[/tex] Plug in 2 for y:

[tex]\boldsymbol{2^3+5(2)}[/tex]

[tex]\diamondsuit[/tex] Cube 2 first:

[tex]\boldsymbol{8+5(2)}[/tex]

[tex]\diamondsuit[/tex]  Multiply 5 times 2 next:

[tex]\boldsymbol{8+10}[/tex]

[tex]\diamondsuit[/tex] Add.

[tex]\boldsymbol{18}[/tex]

Therefore,

[tex]\stackrel{\heartsuit}{\boxed{\boxed{\boldsymbol{Answer:~~18}}}}[/tex]

Cheers!!

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