find the value of p if the value of x⁴-3x³-px-5 is equal to 23 when x = -2
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Answer:
p= 19
Step-by-step explanation:
Given: X= -2
x⁴-3x³-px-5=23
(-2⁴) -3(-2)³+2p=28
16-24+2p=28
-8+2p=28
2p=36
p= 19
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