My problem is: If 3x^2 - 2x + 1 = a(x-1)^2 + b(x-1) + c , find the value of a^2 + b^2 - c^2. The answer is 21; how would you get that? Thanks.
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Originally Posted by Averee My problem is: If 3x^2 - 2x + 1 = a(x-1)^2 + b(x-1) + c , find the value of a^2 + b^2 - c^2. The answer is 21; how would you get that? Thanks. a(x-1)^2+b(x-1)+c a(x^2-2x+1)+b(x-1)+c ax^2-2ax+a+bx-b+c ax^2+(-2a+b)x+(a+c) Thus, a=3 and -2a+b=-2 and a+c=1 Find a,b,c Then you can find your answer.
Thank you.
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