Math, asked by jatinsahu192007, 7 months ago

Evaluate by using identity 78×83

Answers

Answered by nehagautam1995

3

Answer:

(80-2)(80+3)

80²-2*80+3*80-2*3

6400-160+240-6

6400+80-6

6474

Answered by priyaarai69

6

Answer:

78×83

= (80–2)(80+3)

= 80²+(–2+3)80+(–2×3)

= 6400+80–6

= 6474.

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