A) \[A\to p;B\to s;C\to q;D\to r\]
B) \[A\to s;B\to q;C\to r;D\to p\]
C) \[A\to r;B\to p;C\to s;D\to q\]
D) \[A\to q;B\to r;C\to p;D\to s\]
Correct Answer: C
Solution :
A: \[7x{{y}^{2}}z+(-12x{{y}^{2}}z)=-5x{{y}^{2}}z\] B: \[7x{{y}^{2}}z-5x{{y}^{2}}z=2x{{y}^{2}}z\] C: \[5ab+7{{a}^{2}}b+ac-12{{a}^{2}}-3ab+5ac\] \[=-{{a}^{2}}b+2ab+6ac\] D: \[16{{a}^{2}}b+4ac+ab+5{{a}^{2}}b+2ab-3ac\] \[=21{{a}^{2}}b+ac+3ab\]
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