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Popular >

simplify 7i^4-12i^2

Solution

simplify

7 i^{4} - 12 i^{2}

Solution

19

Solution steps

7 i^{4} - 12 i^{2}

7 i^{4} = 7

12 i^{2} = - 12

= 7 - (- 12)

Apply rule:

a - (- b) = a + b

7 - (- 12) = 7 + 12

= 7 + 12

Add the numbers:

7 + 12 = 19

= 19

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Frequently Asked Questions (FAQ)

What is 7i^4-12i^2 ?
The solution to 7i^4-12i^2 is 19