Question

if x=5 so find the value of 2x³-4x²-6x+25​

Answer 1

$\bold{By \: putting \: the \: value \: of \: x \: }$

$\bold{2x³- 4x² - 6x + 25}$

$\bold{ = 2 \times {5}^{3} - 4 \times {5}^{2} - 6 \times {5} + 25 }$

$\bold{ =2 \times 125 - 4 \times 25 - 6 \times 5 + 25 }$

$\bold{ = 250 - 100 - 30 + 25}$

$\bold{ = 250 +25 -100 - 30 }$

$\bold{ = 275 - 100 - 30}$

$\bold{ = 275 - 130}$

$\bold{ = 145}$

Answer 2

Step-by-step explanation:

p(x)=145

Hope this helps u.................,

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