Math, asked by jamviecastillo23821, 18 days ago

7x4 + 3x2 - 4, when x = - 2 is:

Answers

Answered by vikkiain

0

Answer:

120

Step-by-step explanation:

x=-2 putting

7x⁴+3x²-4

7(-2)⁴+3(-2)²-4

7x16+3x4-4

112+12-4

120

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