25x power2+16x+9
this is maths question
Answers
Answer:
Simplifying
25x2 + -16x + 9 = 0
Reorder the terms:
9 + -16x + 25x2 = 0
Solving
9 + -16x + 25x2 = 0
Solving for variable 'x'.
Begin completing the square. Divide all terms by
25 the coefficient of the squared term:
Divide each side by '25'.
0.36 + -0.64x + x2 = 0
Move the constant term to the right:
Add '-0.36' to each side of the equation.
0.36 + -0.64x + -0.36 + x2 = 0 + -0.36
Reorder the terms:
0.36 + -0.36 + -0.64x + x2 = 0 + -0.36
Combine like terms: 0.36 + -0.36 = 0.00
0.00 + -0.64x + x2 = 0 + -0.36
-0.64x + x2 = 0 + -0.36
Combine like terms: 0 + -0.36 = -0.36
-0.64x + x2 = -0.36
The x term is -0.64x. Take half its coefficient (-0.32).
Square it (0.1024) and add it to both sides.
Add '0.1024' to each side of the equation.
-0.64x + 0.1024 + x2 = -0.36 + 0.1024
Reorder the terms:
0.1024 + -0.64x + x2 = -0.36 + 0.1024
Combine like terms: -0.36 + 0.1024 = -0.2576
0.1024 + -0.64x + x2 = -0.2576
Factor a perfect square on the left side:
(x + -0.32)(x + -0.32) = -0.2576
Can't calculate square root of the right side.
The solution to this equation could not be determined.