The real number that should be subtracted from the polynomial f(x)=15×5+70×4+35×3-135×2-40x-11 so that it is exactly divisible by 5x4+10x3-15x2-5x is ____________
A. -12
B. -11
C. 11
D. 12
Answer:B
The real number that should be subtracted from the polynomial f(x)=15×5+70×4+35×3-135×2-40x-11 so that it is exactly divisible by 5x4+10x3-15x2-5x is ____________
A. -12 B. -11 C. 11 D. 12