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Question Number 5507 by Kasih last updated on 17/May/16
if(x−1)(x+1)+3x+x2=ax2+bx+cthena=?b=?c=?
Answered by Rasheed Soomro last updated on 17/May/16
(x−1)(x+1)+3x+x2=ax2+bx+cx2−1+3x+x2=ax2+bx+c2x2+3x−1=ax2+bx+c2x2+3x+(−1)=ax2+bx+ca=2,b=3,c=−1
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