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    				| 1. | If `x-2`is a factor of each of the following twopolynomials, find the values of `a`in each case.`x^3-2a x^2+a x-1``x^5-3x^4-a x^3+3a x^2+2a x+4` | 
| Answer» (x-a) is factor of f(x) f(a)=0 `f(x)=x^3-2ax^2+ax-1` `f(2)=0` `2^3-2a2^2+a*2-1=0` `8-8a+2a-1=0` `a=7/6` `g(x)=x^5-3x^4-ax^3+2ax+4` `g(2)=0` `32-48-8a-12a+4a+4=0` `-16a-12=0` `a=-3/4`. | |