Question
Solve the system of equations
Solve using the substitution method
Solve using the elimination method
(x,y)=(0,0)
Evaluate
{x=3y3y=−2x4
Substitute the given value of x into the equation 3y=−2x4
3y=−2(3y)4
Simplify
More Steps

Evaluate
−2(3y)4
Rewrite the expression
−2×81y4
Multiply the numbers
−162y4
3y=−162y4
Add or subtract both sides
3y−(−162y4)=0
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
3y+162y4=0
Factor the expression
3y(1+54y3)=0
Divide both sides
y(1+54y3)=0
Separate the equation into 2 possible cases
y=0∪1+54y3=0
Solve the equation
More Steps

Evaluate
1+54y3=0
Move the constant to the right-hand side and change its sign
54y3=0−1
Removing 0 doesn't change the value,so remove it from the expression
54y3=−1
Divide both sides
5454y3=54−1
Divide the numbers
y3=54−1
Use b−a=−ba=−ba to rewrite the fraction
y3=−541
Take the 3-th root on both sides of the equation
3y3=3−541
Calculate
y=3−541
Simplify the root
More Steps

Evaluate
3−541
An odd root of a negative radicand is always a negative
−3541
To take a root of a fraction,take the root of the numerator and denominator separately
−35431
Simplify the radical expression
−3541
Simplify the radical expression
−3321
Multiply by the Conjugate
332×322−322
Simplify
332×322−34
Multiply the numbers
6−34
Calculate
−634
y=−634
y=0∪y=−634
Rearrange the terms
{x=3yy=0∪{x=3yy=−634
Calculate
More Steps

Evaluate
{x=3yy=0
Substitute the given value of y into the equation x=3y
x=3×0
Calculate
x=0
Calculate
{x=0y=0
{x=0y=0∪{x=3yy=−634
Calculate
More Steps

Evaluate
{x=3yy=−634
Substitute the given value of y into the equation x=3y
x=3(−634)
Calculate
x=−234
Calculate
{x=−234y=−634
{x=0y=0∪{x=−234y=−634
Calculate
{x=−234y=−634∪{x=0y=0
Check the solution
More Steps

Check the solution
⎩⎨⎧−234=3(−634)3(−634)=−2(−234)4
Simplify
{−0.793701=−0.793701−0.793701=0.793701
Evaluate
false
{x=0y=0
Check the solution
More Steps

Check the solution
{0=3×03×0=−2×04
Simplify
{0=00=0
Evaluate
true
{x=0y=0
Solution
(x,y)=(0,0)
Show Solution
