Question

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Answer 1

Simplifying
9x2 + -5x = -3

Reorder the terms:
-5x + 9x2 = -3

Solving
-5x + 9x2 = -3

Solving for variable 'x'.

Reorder the terms:
3 + -5x + 9x2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + -5x + 9x2 = 0

Begin completing the square. Divide all terms by
9 the coefficient of the squared term:

Divide each side by '9'.
0.3333333333 + -0.5555555556x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + -0.5555555556x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + -0.5555555556x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + -0.5555555556x + x2 = 0 + -0.3333333333
-0.5555555556x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
-0.5555555556x + x2 = -0.3333333333

The x term is -0.5555555556x. Take half its coefficient (-0.2777777778).
Square it (0.07716049384) and add it to both sides.

Add '0.07716049384' to each side of the equation.
-0.5555555556x + 0.07716049384 + x2 = -0.3333333333 + 0.07716049384

Reorder the terms:
0.07716049384 + -0.5555555556x + x2 = -0.3333333333 + 0.07716049384

Combine like terms: -0.3333333333 + 0.07716049384 = -0.25617283946
0.07716049384 + -0.5555555556x + x2 = -0.25617283946

Factor a perfect square on the left side:
(x + -0.2777777778)(x + -0.2777777778) = -0.25617283946

Can't calculate square root of the right side.

The solution to this equation could not be determined

Answer 2

i got that off a easysolution site lmao :P