(i7)2

Apply the product rule to i7.

i272

Rewrite i2 as -1.

-172

Use axn=axn to rewrite 7 as 712.

-1(712)2

Apply the power rule and multiply exponents, (am)n=amn.

-1⋅712⋅2

Combine 12 and 2.

-1⋅722

Cancel the common factor of 2.

Cancel the common factor.

-1⋅722

Divide 1 by 1.

-1⋅71

-1⋅71

Evaluate the exponent.

-1⋅7

-1⋅7

Multiply -1 by 7.

-7

Simplify (i square root of 7)^2