Solve -7i(-4i) - ScanMath

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

x

Question

Simplify the expression

- 28

Evaluate

- 7 i (- 4 i)

Rewrite the expression

7 i \times 4 i

Multiply

7 \times 4 i^{2}

Multiply

28 i^{2}

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

28 (- 1)

Solution

- 28

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