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If $q=c+d$, which of the following is equivalent to the expression $\chi^{2}-c^{2}-2cd-d^{2}$?
MM
Mashaal Masha
Feb 24, 2024
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If $a=c+d$, which of the following is equivalent to the expression $x^{2}-c^{2}-2cd-d^{2}$?
Difficulty: Hard
A:
$(x+a)^{2}$
B:
$(x-a)^{2}$
C:
\((x+a)(x-a)\)
D:
$x^{2}-ax-a^{2}$
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ID: 65d9cd4a72be60754a505a78