Question

the value of polynomial 7x⁴+3x²-4 when X=-2 in
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Answer 1

7(2)power +3(2) power2 -4

7(16)+3(4)-4

42+12-4

54-4

50 is the answer

Answer 2

Step-by-step explanation:

let p(x)= 7x⁴+3x²-4

for x=-2

p(-2)= 7(-2)⁴+3(-2)²-4

=7*16+3*4-4

=112+12-4

=124-4

=120