Question

Carlotta thinks that 3y + 5y3 is the same as 8y4. Which statement shows that it is NOT the same?

Answer 1

Carlotta just needs to evaluate both expressions

Say y = 2

3y + 5y³ = 3(2) + 5(2)³ = 6 +40 = 46

8.y**4    = 8*(2)**4 = 8*(16) = 128

This means that   3y + 5y³ ≠ 8.y**4  

Answer 2

Answer:

Unlike terms

Step-by-step explanation:

3y and $5y^3$ are not same

that is these are only like terms.

We can add or subtract only like terms

in Algebra terms are alike if their exponents are same

here first terms exponent is 1

and second term exponent is $5y^3$ is 3.

therefore these terms cannot be added t give $8y^4$