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9x2-3[a2+b2]x+a2b2=0 using quadratic formula solve for x

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9x2 - 3(a2+b2)x + a2b2=0

9x2 -3a2x -3b2x +a2b2 =0

3x(3x-a2)-3b2(3x-a2)=0

(3x-a2)(3x-3b2)=0

3x-a2=0

3x=a2

x=a2/3

0r

3x-3b2=0

3x=3b2

x=3b2/3

x=b2

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