Math, asked by gaursantoshi519, 6 months ago

plz ans this question

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Answered by rsagnik437

28

x= -2

7x⁴+3x²-4

7(-2)⁴+3(-2)²-4

7×16+3×4-4

112+12-4

124-4

=120

Answered by Hena133

2

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