Question

$find \: the \: value \: of \: 2xcube \: - 3x + \sqrt{5 \: } when \: x = - 3$
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Answer 1

Answer:

Given:-

${2x}^{3} - 3x + \sqrt{5}$

X = -3

To Find :-

The value of the equation when x = -3

Solution:-

To find the value of the above equation we need to put the value of "x" in that equation

Now, Putting the Value of "x" in the equation we get,

p(x) = 2x³ - 3x + √5

p(-3) = 2 ( -3)³ - 3 (-3) + √5

p(-3) = -54 + 9 + √5

p(-3) = - 45 +√5

p(-3) = - 45 + 2.236 [√5 = 2.236]

p(-3) = -42.763

so, The Value of the equation is -42.763.