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see explanation

Step-by-step explanation:

Given

P(x) = x³ + 7x² + 4x, then

P(a) = a³ + 7a² + 4a ← substitute x = a into polynomial

To evaluate P(- 2) substitute a = - 2 into P(a)

P(- 2) = (- 2)³ + 7(- 2)² + 4(- 2) = - 8 + 28 - 8 = 12

Since P(- 2) ≠ 0 then (x + 2) is not a factor of P(x)

12

Step-by-step explanation:

(-2)³ + 7(-2)² + 4(-2)

12

can i know which language is this?

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm