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