Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
d=−37
Alternative Form
d≈−1.912931
Evaluate
21d2×7d=−249
Multiply
More Steps
Evaluate
21d2×7d
Multiply the numbers
27d2×d
Multiply the terms with the same base by adding their exponents
27d2+1
Add the numbers
27d3
27d3=−249
Multiply by the reciprocal
27d3×72=−249×72
Multiply
d3=−249×72
Multiply
More Steps
Evaluate
−249×72
Reduce the numbers
−27×2
Reduce the numbers
−7×1
Simplify
−7
d3=−7
Take the 3-th root on both sides of the equation
3d3=3−7
Calculate
d=3−7
Solution
d=−37
Alternative Form
d≈−1.912931
Show Solution
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