Solving a Basic Cubic Equation
MathematicsAlgebraic EquationsEasySTEM
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Question
$a^3 + 2 = 10$
$a = ?$
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Animated Video Solution
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Step by Step Written Solution
1
Step 1
Let's solve this cubic equation to find the value of a. We are given a cubed plus two equals ten.
Solving for a
2
Step 2
Our first goal is to isolate the term with our variable, a cubed. To do that, we need to move the positive two to the other side.
$$a^3 + 2 = 10$$
3
Step 3
We subtract two from both sides of the equation.
4
Step 4
Simplifying the right side, ten minus two gives us eight. Now we have a cubed equals eight.
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