What is the difference of the polynomials? open paren 12 x squared minus 11 y squared minus 13 x close paren minus open paren 5 x squared minus 14 y squared minus 9 x close paren
Answer
A
7 x squared minus 25 y squared minus 22 x
B
7 x squared minus 3 y squared minus 4 x
C
7 x squared plus 3 y squared minus 4 x
D
17 x squared minus 25 y squared minus 22 x
Explanation
Distribute the minus sign across the second polynomial: 12x² − 11y² − 13x − 5x² + 14y² + 9x. Combine like terms to get 7x² + 3y² − 4x, which is choice A.
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