Solve d^22d-8 - ScanMath

Question

Simplify the expression

2 d^{3} - 8

Evaluate

d^{2} \times 2 d - 8

Solution

More Steps

Evaluate

d^{2} \times 2 d

Multiply the terms with the same base by adding their exponents

d^{2 + 1} \times 2

Add the numbers

d^{3} \times 2

Use the commutative property to reorder the terms

2 d^{3}

2 d^{3} - 8

Show Solution

2 (d^{3} - 4)

Evaluate

d^{2} \times 2 d - 8

Multiply

More Steps

Evaluate

d^{2} \times 2 d

Multiply the terms with the same base by adding their exponents

d^{2 + 1} \times 2

Add the numbers

d^{3} \times 2

Use the commutative property to reorder the terms

2 d^{3}

2 d^{3} - 8

Solution

2 (d^{3} - 4)

Show Solution

d = 34

Alternative Form

d \approx 1.587401

Evaluate

d^{2} \times 2 d - 8

To find the roots of the expression,set the expression equal to 0

d^{2} \times 2 d - 8 = 0

Multiply

More Steps

Multiply the terms

d^{2} \times 2 d

Multiply the terms with the same base by adding their exponents

d^{2 + 1} \times 2

Add the numbers

d^{3} \times 2

Use the commutative property to reorder the terms

2 d^{3}

2 d^{3} - 8 = 0

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

2 d^{3} = 0 + 8

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

2 d^{3} = 8

Divide both sides

\frac{2 d ^{3}}{2} = \frac{8}{2}

Divide the numbers

d^{3} = \frac{8}{2}

Divide the numbers

More Steps

Evaluate

\frac{8}{2}

Reduce the numbers

\frac{4}{1}

Calculate

4

d^{3} = 4

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

3 d^{3} = 34

Solution

d = 34

Alternative Form

d \approx 1.587401

Show Solution