p(-2.1)=5x^4-3x^3-x-2.75

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Solution for p(-2.1)=5x^4-3x^3-x-2.75 equation:


Simplifying
p(-2.1) = 5x4 + -3x3 + -1x + -2.75

Reorder the terms for easier multiplication:
-2.1p = 5x4 + -3x3 + -1x + -2.75

Reorder the terms:
-2.1p = -2.75 + -1x + -3x3 + 5x4

Solving
-2.1p = -2.75 + -1x + -3x3 + 5x4

Solving for variable 'p'.

Move all terms containing p to the left, all other terms to the right.

Divide each side by '-2.1'.
p = 1.30952381 + 0.4761904762x + 1.428571429x3 + -2.380952381x4

Simplifying
p = 1.30952381 + 0.4761904762x + 1.428571429x3 + -2.380952381x4

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