Math, asked by siva4985, 9 months ago

Find the value of the expression-
(398 +257)²-(398-257)²
398x 257

Answers

Answered by Asanhmr

8

Answer: Sign missing before 398×257,

Put the appropriate sign and use below mentioned formula.

Step-by-step explanation:

(a+b)^2 - (a-b)^2 = 4ab

(398 +257)²-(398-257)² ? 398x 257

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