Math, asked by rahulrahulkum9763, 1 year ago

Evaluate :

2x3+2x2-7x+72,when x=(3-5i)/2

Answers

Answered by cum
4
I think this is the answer
Attachments:
Answered by Golda
4
Solution :-

(2×3) + (2×2) - 7x + 72      x = (3 - 5)/2 = -2/2 = -1

⇒ 6 + 4 + 72 - 7x

⇒ 82 - (7 × - 1)

⇒ 82 - (- 7)

⇒ 82 + 7

= 89

Answer.


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