Solve the duadratic equation
4x²-4ax+(a4-b4)=0
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- Solve the equation by quadratic formula: 4x2-4a2x+(a4-b4)=0 .
=(-4a²)²-4×4×(a⁴-b⁴)
=16a⁴-16a⁴+16b⁴
D=16b⁴
x=-b±√D/2a
=-(-4a²)±4a²/2×4
=4a²±4a²/8
x=4a²+4a²/8
=8a²/8
=a²
x=4a²-4a²/8
=0/8
=0
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