Let $$\(r\)$$ be a solution of $$\(x^{2}-7 x+11=0\)$$ What is the value of $$\((r-3)(r-4)+(r-12)(r+5) ?\)$$
A.
-71
B.
-70
C.
-69
D.
70
Exam No：2016 First Round Grades 10-12 Year：2016 Question No：5
Answer:
B
Knowledge points:
G10-12 - Algebra - Polynomials (Remainder Theorem, Divisibility)
Solution:
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