(z^2+6z-8)*(z^2-z-7)=

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Solution for (z^2+6z-8)*(z^2-z-7)= equation: 


Simplifying
(z2 + 6z + -8)(z2 + -1z + -7) = 0

Reorder the terms:
(-8 + 6z + z2)(z2 + -1z + -7) = 0

Reorder the terms:
(-8 + 6z + z2)(-7 + -1z + z2) = 0

Multiply (-8 + 6z + z2) * (-7 + -1z + z2)
(-8(-7 + -1z + z2) + 6z * (-7 + -1z + z2) + z2(-7 + -1z + z2)) = 0
((-7 * -8 + -1z * -8 + z2 * -8) + 6z * (-7 + -1z + z2) + z2(-7 + -1z + z2)) = 0
((56 + 8z + -8z2) + 6z * (-7 + -1z + z2) + z2(-7 + -1z + z2)) = 0
(56 + 8z + -8z2 + (-7 * 6z + -1z * 6z + z2 * 6z) + z2(-7 + -1z + z2)) = 0
(56 + 8z + -8z2 + (-42z + -6z2 + 6z3) + z2(-7 + -1z + z2)) = 0
(56 + 8z + -8z2 + -42z + -6z2 + 6z3 + (-7 * z2 + -1z * z2 + z2 * z2)) = 0
(56 + 8z + -8z2 + -42z + -6z2 + 6z3 + (-7z2 + -1z3 + z4)) = 0

Reorder the terms:
(56 + 8z + -42z + -8z2 + -6z2 + -7z2 + 6z3 + -1z3 + z4) = 0

Combine like terms: 8z + -42z = -34z
(56 + -34z + -8z2 + -6z2 + -7z2 + 6z3 + -1z3 + z4) = 0

Combine like terms: -8z2 + -6z2 = -14z2
(56 + -34z + -14z2 + -7z2 + 6z3 + -1z3 + z4) = 0

Combine like terms: -14z2 + -7z2 = -21z2
(56 + -34z + -21z2 + 6z3 + -1z3 + z4) = 0

Combine like terms: 6z3 + -1z3 = 5z3
(56 + -34z + -21z2 + 5z3 + z4) = 0

Solving
56 + -34z + -21z2 + 5z3 + z4 = 0

Solving for variable 'z'.

The solution to this equation could not be determined.

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