Answer:
B). The distributive property was not applied correctly in the second step.
Step-by-step explanation:
We need to find the correct option for marking error from given choices:
[tex]\left(x^2+2x+6\right)\left(2x^2-4x-1\right)[/tex]
Step 1:
[tex]x^2\left(2x^2-4x-1\right)+2x\left(2x^2-4x-1\right)+6\left(2x^2-4x-1\right)[/tex]
No error.
Step 2:
If you apply distributive property correctly then 2nd term gives:
[tex]2x\left(2x^2-4x-1\right)=4x^3-8x^2-2x[/tex]
While 2nd term is not like that.
Hence final answer is :
B). The distributive property was not applied correctly in the second step.
