Solve (-5-i) 7 (4i) - ScanMath

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Type your math problem... (-5-i) 7 (4i)

x

Question

Simplify the expression

28 - 140 i

Evaluate

(- 5 - i) \times 7 \times 4 i

Multiply the numbers

(- 5 - i) \times 28 i

Apply the distributive property

- 5 \times 28 i - i \times 28 i

Multiply the numbers

- 140 i - i \times 28 i

Multiply the numbers

More Steps

Evaluate

- i \times 28 i

Multiply

- 28 i^{2}

Use i^{2} = - 1 to transform the expression

- 28 (- 1)

Calculate

28

- 140 i + 28

Solution

28 - 140 i

Show Solution

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