Which of the following shows the sum of the polynomials −3x2+3y2+4x and 4x2−4y+2? A. −3x2+3y2+4x+4x2−4y+2 B. −x2+3y2+4x−4y+2 C.
x2+3y2+4x−4y+2 D. 7x2+3y2+4x+4x2−4y+2
2 answers:
-3x² + 3y² + 4x + 4x² - 4y + 2
Add like terms.
x² + 3y² + 4x - 4y + 2
So the answer is D.
D. 7x2+3y2+4x+4x2−4y+2 is your correct answer
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