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Popular >

simplify 9i^4-3i^2

Solution

simplify

9 i^{4} - 3 i^{2}

Solution

12

Solution steps

9 i^{4} - 3 i^{2}

9 i^{4} = 9

3 i^{2} = - 3

= 9 - (- 3)

Apply rule:

a - (- b) = a + b

9 - (- 3) = 9 + 3

= 9 + 3

Add the numbers:

9 + 3 = 12

= 12

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Frequently Asked Questions (FAQ)

What is 9i^4-3i^2 ?
The solution to 9i^4-3i^2 is 12