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Assuming x(2-10x)=21 to be solved for x, distribute to -10x2+2x=21, or 10x2-2x+21=0. By the quadratic equation, we can determine there are no real solutions because the square root of -836 does not exist.
In imaginary solutions, we can reduce to 1/10*(1 + sqrt(-209)) and 1/10*(1-sqrt(-209)) as solutions.
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What is x if -3x equals 21?
x=-7
What is 3x-3 equals 7x 21?
If: 3x-3 = 7x+21 Then: x = -6
The quadratic formula x2 plus 8x - 5 equals 0?
x2 + 8x - 5 = 0 ∴ x2 + 8x + 16 = 21 ∴ (x + 4)2 = 21 ∴ x + 4 = ± √21 ∴ x = -4 ± √21
What type of lines are these x plus 2y equals 7 and 2x plus 4y equals 21?
They are parallel lines.
What does x equal when x plus 20x equals to 60000?
x+20x = 60000 21x = 60000 x = 60000/21 = 2857.'142857' recurring
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