Simplify:

(6 + 4i) - (2 - 6i) - 7

• 16 + 6i

• -3 + 10i

• -1 + 4i

• -3 + 2i

Refer to the above image, what is the conjugate of the denominator?

• 8 + 6i

• 6 + 8i

• 6 - 8i

• -6 +8i

Simplify

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Refer to the above image, what is the conjugate of the denominator?

• -1 + 5i

• 1 - 5i

• 1 + 5i

• -1 - 5i

(1+3i)+(7-2i)

• 8+i

• i+8

• 8+5i

• 5i+8

(-5-2i)-(5-7i)

• 10-5i

• -10+5i

• -10-5i

• 5-10i

(6i)-(4i)

• 2i

• -2i

• 2

• -2

-7-7i-(-7-7i)

• 0

• -14

• -14+i

• 14-2i

(-4+4i)+(-9-2i)

• 13-2i

• 5+6i

• 2i-13

• -13+2i

6i+1-3i

• 1+3i

• 3i+1

• 1+9i

• 10i