Mathematics: NEED HELP PLEASE! Complete the following exercises by applying polynomial identities to complex numbers. Show your work. 1. Find the product of (x + (3+5i))2

NEED HELP PLEASE! Complete the following exercises

lizzy6629

22.06.2021

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

i^2 = -1

Square of the sum:

(x + y)^2 = x^2 + 2xy + y^2

In this question:

(x + (3+5i))^2

x^2 + 2x(3+5i) + (3+5i)^2

x^2 + 6x + 10xi + 9 + 30i + 25i^2

x^2 + 6x + 9 + (10x+30)i - 25

x^2 + 6x + (10x+30)i - 16

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

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ayoismeisalex

11.06.2021

19 i am pretty sure...i.d.k bc i did this a while ago

Step-by-step explanation:

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