0=(9r+5)(r^2-16r+63)

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Solution for 0=(9r+5)(r^2-16r+63) equation: 


Simplifying
0 = (9r + 5)(r2 + -16r + 63)

Reorder the terms:
0 = (5 + 9r)(r2 + -16r + 63)

Reorder the terms:
0 = (5 + 9r)(63 + -16r + r2)

Multiply (5 + 9r) * (63 + -16r + r2)
0 = (5(63 + -16r + r2) + 9r * (63 + -16r + r2))
0 = ((63 * 5 + -16r * 5 + r2 * 5) + 9r * (63 + -16r + r2))
0 = ((315 + -80r + 5r2) + 9r * (63 + -16r + r2))
0 = (315 + -80r + 5r2 + (63 * 9r + -16r * 9r + r2 * 9r))
0 = (315 + -80r + 5r2 + (567r + -144r2 + 9r3))

Reorder the terms:
0 = (315 + -80r + 567r + 5r2 + -144r2 + 9r3)

Combine like terms: -80r + 567r = 487r
0 = (315 + 487r + 5r2 + -144r2 + 9r3)

Combine like terms: 5r2 + -144r2 = -139r2
0 = (315 + 487r + -139r2 + 9r3)

Solving
0 = 315 + 487r + -139r2 + 9r3

Solving for variable 'r'.

Combine like terms: 0 + -315 = -315
-315 + -487r + 139r2 + -9r3 = 315 + 487r + -139r2 + 9r3 + -315 + -487r + 139r2 + -9r3

Reorder the terms:
-315 + -487r + 139r2 + -9r3 = 315 + -315 + 487r + -487r + -139r2 + 139r2 + 9r3 + -9r3

Combine like terms: 315 + -315 = 0
-315 + -487r + 139r2 + -9r3 = 0 + 487r + -487r + -139r2 + 139r2 + 9r3 + -9r3
-315 + -487r + 139r2 + -9r3 = 487r + -487r + -139r2 + 139r2 + 9r3 + -9r3

Combine like terms: 487r + -487r = 0
-315 + -487r + 139r2 + -9r3 = 0 + -139r2 + 139r2 + 9r3 + -9r3
-315 + -487r + 139r2 + -9r3 = -139r2 + 139r2 + 9r3 + -9r3

Combine like terms: -139r2 + 139r2 = 0
-315 + -487r + 139r2 + -9r3 = 0 + 9r3 + -9r3
-315 + -487r + 139r2 + -9r3 = 9r3 + -9r3

Combine like terms: 9r3 + -9r3 = 0
-315 + -487r + 139r2 + -9r3 = 0

The solution to this equation could not be determined.

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