12x²-9x⁴=3
class 11 maths
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Step-by-step explanation:
12x^2-9x^4=3
3x^2(4-3x^2)=3
x^2(4-3x^2)=0
x^2=0. or. (4-3x^2)=0
x=0. or. -3x^2= -4
x^2=4
x=0. or x=+-2
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