-2z² + 4z + 2z² = ?
Can someone please explain how to do this?
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4z

Step-by-step explanation:

-2z² + 4z + 2z²

Combine like terms

-2z^2  + 2z^2   +4z

0z^2 +4z

4z

please check the question ...

the 2z's cancel

you are left with 4z=

check if the question was can you factor and that the -2x^2 is not -2z^3

Step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt