2sin^2x+7sinx-4=0

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Solution for 2sin^2x+7sinx-4=0 equation: 


Simplifying
2sin2x + 7sinx + -4 = 0

Reorder the terms:
-4 + 7insx + 2in2sx = 0

Solving
-4 + 7insx + 2in2sx = 0

Solving for variable 'i'.

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

Add '4' to each side of the equation.
-4 + 7insx + 4 + 2in2sx = 0 + 4

Reorder the terms:
-4 + 4 + 7insx + 2in2sx = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 7insx + 2in2sx = 0 + 4
7insx + 2in2sx = 0 + 4

Combine like terms: 0 + 4 = 4
7insx + 2in2sx = 4

Reorder the terms:
-4 + 7insx + 2in2sx = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + 7insx + 2in2sx = 0

The solution to this equation could not be determined.

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