find the value of polynomial p x is equals to 8 x cube minus 6 x square - 4 x + 3 when X is equals to root 2
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Answered by
14
Answer:
12 root 2 - 9
Step-by-step explanation:
8*(root 2)^3-6*(root 2)^2-4*root 2-3
=16*root 2 -12-4*root 2 -3
=12*root 2 - 9
Hope It Helps
Answered by
9
Step-by-step explanation:
p(x) = 8x^3-6x^2-4x+3
= 8(√2)^3 -6(√2)^2 -4(√2) +3
= 8( √2×2×2 ) - 6×2 - 4√2 +3
= 16 √2 - 12 - 4√2 +3
= 12√2 -9
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