Algebra 2

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

33 = 18 - 3x²

• x = ±5i

• x = ±i√5

• x = ±√5

• x = i√5

Simplify:
(2 - 3i)(5 + 4i)

• 22 - 7i

• 22 + 7i

• 22 - 7i²

• 22 + 7i²

Simplify

• ± 10i

• ± 10

• ± √10i

• ± √10

• x = {-4, -1}

• x = {-1, -4}

• x = {2+i, 2-i}

• x = {-2+i, -2-i}

Multiply: (4 + 8i)(1 + i)

• 4 + 12i

• -4 + 12i

• 12 + 4i

• 12 - 4i

Find the conjugate of:
5 + 7i

• 5 − 7i

• -5 − 7i

• -5 + 7i

Find the conjugate of:
-4 − 8i

• -4 + 8i

• 4 − 8i

• 4 + 8i

Find the sum.
(3y² + y³ - 5) + (4y² -4y + 2y³ + 8)

• 3y³ + 7y² - 4y + 3

• 4y² + 3y³ - y + 3

• -y⁴ + 2y³ -y - 4

• 4y³ + 3y² -3y + 1