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ind the zeros of the polynomial xx^{2}-3 x-m(m+3) |
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Answer» x2-3x-m(m+3)=0D=b2-4ac=〖(-3〗2)- 4×1×-m(m+3)=9 – 4 ×-m2-3m=9+〖4m〗2+12m=4m2+12m+9=〖(2m)〗2+2×(2m)×3+32=(2m+3)2√(D ) =2m+3 x=(-b±√(b2-4ac)) / 2a=(3+(2m+3))/(2×1)= (6+2m)/2= 6/2+2m/2 =3+mx= (-b±√(b2-4ac))/2a = (3-(2m+3))/(2×1) = (3-2m-3)/2 =-mANS : (-M,M+3) |
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