Question
Solve the equation(The real numbers system)
y∈/R
Alternative Form
No real solution
Evaluate
(6−y)y=36
Multiply the terms
y(6−y)=36
Expand the expression
More Steps

Evaluate
y(6−y)
Apply the distributive property
y×6−y×y
Use the commutative property to reorder the terms
6y−y×y
Multiply the terms
6y−y2
6y−y2=36
Move the expression to the left side
6y−y2−36=0
Rewrite in standard form
−y2+6y−36=0
Multiply both sides
y2−6y+36=0
Substitute a=1,b=−6 and c=36 into the quadratic formula y=2a−b±b2−4ac
y=26±(−6)2−4×36
Simplify the expression
More Steps

Evaluate
(−6)2−4×36
Multiply the numbers
(−6)2−144
Rewrite the expression
62−144
Evaluate the power
36−144
Subtract the numbers
−108
y=26±−108
Solution
y∈/R
Alternative Form
No real solution
Show Solution

Solve the equation(The complex numbers system)
Solve using the quadratic formula in the complex numbers system
Solve by completing the square in the complex numbers system
Solve using the PQ formula in the complex numbers system
y1=3−33×i,y2=3+33×i
Alternative Form
y1≈3−5.196152i,y2≈3+5.196152i
Evaluate
(6−y)y=36
Multiply the terms
y(6−y)=36
Expand the expression
More Steps

Evaluate
y(6−y)
Apply the distributive property
y×6−y×y
Use the commutative property to reorder the terms
6y−y×y
Multiply the terms
6y−y2
6y−y2=36
Move the expression to the left side
6y−y2−36=0
Rewrite in standard form
−y2+6y−36=0
Multiply both sides
y2−6y+36=0
Substitute a=1,b=−6 and c=36 into the quadratic formula y=2a−b±b2−4ac
y=26±(−6)2−4×36
Simplify the expression
More Steps

Evaluate
(−6)2−4×36
Multiply the numbers
(−6)2−144
Rewrite the expression
62−144
Evaluate the power
36−144
Subtract the numbers
−108
y=26±−108
Simplify the radical expression
More Steps

Evaluate
−108
Evaluate the power
108×−1
Evaluate the power
108×i
Evaluate the power
More Steps

Evaluate
108
Write the expression as a product where the root of one of the factors can be evaluated
36×3
Write the number in exponential form with the base of 6
62×3
The root of a product is equal to the product of the roots of each factor
62×3
Reduce the index of the radical and exponent with 2
63
63×i
y=26±63×i
Separate the equation into 2 possible cases
y=26+63×iy=26−63×i
Simplify the expression
More Steps

Evaluate
y=26+63×i
Divide the terms
More Steps

Evaluate
26+63×i
Rewrite the expression
22(3+33×i)
Reduce the fraction
3+33×i
y=3+33×i
y=3+33×iy=26−63×i
Simplify the expression
More Steps

Evaluate
y=26−63×i
Divide the terms
More Steps

Evaluate
26−63×i
Rewrite the expression
22(3−33×i)
Reduce the fraction
3−33×i
y=3−33×i
y=3+33×iy=3−33×i
Solution
y1=3−33×i,y2=3+33×i
Alternative Form
y1≈3−5.196152i,y2≈3+5.196152i
Show Solution
