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Simplifying (3x + 5y)(9x2 + -4x) = a Reorder the terms: (3x + 5y)(-4x + 9x2) = a Multiply (3x + 5y) * (-4x + 9x2) (3x * (-4x + 9x2) + 5y * (-4x + 9x2)) = a ((-4x * 3x + 9x2 * 3x) + 5y * (-4x + 9x2)) = a ((-12x2 + 27x3) + 5y * (-4x + 9x2)) = a (-12x2 + 27x3 + (-4x * 5y + 9x2 * 5y)) = a (-12x2 + 27x3 + (-20xy + 45x2y)) = a Reorder the terms: (-20xy + -12x2 + 45x2y + 27x3) = a (-20xy + -12x2 + 45x2y + 27x3) = a Solving -20xy + -12x2 + 45x2y + 27x3 = a Solving for variable 'x'. Reorder the terms: -1a + -20xy + -12x2 + 45x2y + 27x3 = a + -1a Combine like terms: a + -1a = 0 -1a + -20xy + -12x2 + 45x2y + 27x3 = 0 The solution to this equation could not be determined.
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