Answer:
a) 2x³y + 7y²x − 3x² − 12y is the right answer.
Explanation:
Which of the following shows 2x³y − 3x² + 7y²x − 12y written in standard form?
a) 2x³y + 7y²x − 3x² − 12y✓
b) −12y + 7y²x − 3x² + 2x³y
c) 7y²x − 12y + 2x³y − 3x²
d) −12y − 3x² + 7y²x + 2x³y