ans me fast tommorow is my board exam
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hope this helps u..all the best..pls mark me brainlist
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samuelpaul:
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x2-(2b-1)x + (b2-b-20) = 0
x2-2bx+1× +b2-b-20=0
x2-2bx+1-20+b2-b=0
x2-2bx-19+b2-b=0
x2=0+2bx+19-b2+b
x=
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