Question

Solve (243+647)^2+(243-647)^2/243×243+647×647

Answer 1

Answer:

(243+647)²+(243-647)²

————————————

(243)²+(647)²

= (900)²-(404)²

————————

(243)²+(647)²

= a²-b² = (a+b)(a-b)

= (900-404)(900+404)

————————————

59049 + 418609

= (496)(1304)

———————

477658

= (1)(1304)

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963

= 1.354