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Find value of...

Question

Find value of $12 x^{3} + x^{2} + x$ if $x = 7$

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Solution

Given: $12 x^{3} + x^{2} + x$

At $x = 7$ ,

$= 12 (7)^{3} + (7)^{2} + 7$

$= 12 \times 343 + 49 + 7$

$= 4116 + 49 + 7 = 4172$

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{log}_{2} (8 X - X^{2} - 7) = {log}_{2} (X^{4} - 12 X^{3} + 40 X^{2} - 34 X - 7),

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Q. Find the value of

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then find the value of

x^{2} + \frac{1}{x^{2}} .

x = 2

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f (x) = x^{4} - 12 x^{3} + 17 x^{2} - 9 x + 7

, find the value of

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