Question

x-3x2+19x-20, if x = 1-4i.​

Answer 1

Answer:

-35

Explanation:

• x-3x²+19x-20
• 1-4-3(1-4)²+19(1-4)-20
• -3-3(1-16)+19(-3)-20
• -3-3(-15)-57-20
• -3+45-57-20
• -80+45
• -35

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