y=ln(x^2+4x-21)

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Solution for y=ln(x^2+4x-21) equation: 


Simplifying
y = ln(x2 + 4x + -21)

Reorder the terms:
y = ln(-21 + 4x + x2)
y = (-21 * ln + 4x * ln + x2 * ln)
y = (-21ln + 4lnx + lnx2)

Solving
y = -21ln + 4lnx + lnx2

Solving for variable 'y'.

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

Simplifying
y = -21ln + 4lnx + lnx2

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