Question

Which is NOT equivalent to this expression?

Answer 1

Answer:

$15 {g}^{2} + 15g$

Step-by-step explanation:

The given expresion is

$3(5 {g}^{2} + 15g)$

when we expand this expression we get;

$3(5 {g}^{2} + 15g) = 15 {g}^{2} + 45g$

Now let us analyze the options:

First:

$15 {g}^{2} + 45g$

This is equivalent to the given expresion.

Second:

$15({g}^{2} + 3g) = 15{g}^{2} + 45g$

Also equivalent

Third:

$15g({g} + 3) = 15{g}^{2} + 45g$

Also equivalent

Fourth:

$15 {g}^{2} + 15g \ne 15{g}^{2} + 45g$

Not equivalent

Answer 2

the answer is

15g2+15g