Solve d^2 3d-10=0

Question

Solve the equation

d = \frac{3 90}{3}

Alternative Form

d \approx 1.493802

Evaluate

d^{2} \times 3 d - 10 = 0

Multiply

More Steps

Evaluate

d^{2} \times 3 d

Multiply the terms with the same base by adding their exponents

d^{2 + 1} \times 3

Add the numbers

d^{3} \times 3

Use the commutative property to reorder the terms

3 d^{3}

3 d^{3} - 10 = 0

Move the constant to the right-hand side and change its sign

3 d^{3} = 0 + 10

Removing 0 doesn't change the value,so remove it from the expression

3 d^{3} = 10

Divide both sides

\frac{3 d ^{3}}{3} = \frac{10}{3}

Divide the numbers

d^{3} = \frac{10}{3}

Take the 3 -th root on both sides of the equation

3 d^{3} = 3 \frac{10}{3}

Calculate

d = 3 \frac{10}{3}

Solution

More Steps

Evaluate

3 \frac{10}{3}

To take a root of a fraction,take the root of the numerator and denominator separately

\frac{3 10}{3 3}

Multiply by the Conjugate

\frac{3 10 \times 3 3 ^{2}}{3 3 \times 3 3 ^{2}}

Simplify

\frac{3 10 \times 3 9}{3 3 \times 3 3 ^{2}}

Multiply the numbers

More Steps

Evaluate

310 \times 39

The product of roots with the same index is equal to the root of the product

3 10 \times 9

Calculate the product

390

\frac{3 90}{3 3 \times 3 3 ^{2}}

Multiply the numbers

More Steps

Evaluate

33 \times 3 3^{2}

The product of roots with the same index is equal to the root of the product

3 3 \times 3^{2}

Calculate the product

3 3^{3}

Reduce the index of the radical and exponent with 3

3

\frac{3 90}{3}

d = \frac{3 90}{3}

Alternative Form

d \approx 1.493802

Show Solution