Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
x=−1
Evaluate
−3x2×30x−90=0
Multiply
More Steps
Evaluate
−3x2×30x
Multiply the terms
−90x2×x
Multiply the terms with the same base by adding their exponents
−90x2+1
Add the numbers
−90x3
−90x3−90=0
Move the constant to the right-hand side and change its sign
−90x3=0+90
Removing 0 doesn't change the value,so remove it from the expression
−90x3=90
Change the signs on both sides of the equation
90x3=−90
Divide both sides
9090x3=90−90
Divide the numbers
x3=90−90
Divide the numbers
More Steps
Evaluate
90−90
Reduce the numbers
1−1
Calculate
−1
x3=−1
Take the 3-th root on both sides of the equation
3x3=3−1
Calculate
x=3−1
Solution
More Steps
Evaluate
3−1
An odd root of a negative radicand is always a negative
−31
Simplify the radical expression
−1
x=−1
Show Solution
Graph
