Given:
The expression is

To find:
The expression which is not a correct way to rewrite the given expression.
Solution:
We have,

Using distributive property, we get


Using distributive property the given expression can rewritten as:

Only the expression in option A is not a correct way to rewrite the given expression because
is not distributed to
properly.
Therefore, the correct option is A.
The answer to the problem is x - 1
The answer is 15x^2+7x-4
because:
1) 15x^2+12x-5x-4
2) 15x^2+7x-4