Find the value of x using 10th standard methods .
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Step-by-step explanation:
x²+12/x²=7
→(x⁴+12)/x²=7 [taking LCM of x²]
→x⁴+12=7x² [cross multiplying 7]
→x⁴-7x²+12=0
→x⁴-4x²-3x²+12=0
→x²(x²-4)-3(x²-4)=0
→(x²-3)(x²-4)=0
→x²-3=0,x²-4=0
→x=√3,x=±2
Here is ur solution...
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