Question

evalute using the indentities 505×503​

Answer 1

Answer:

(500+5) (500+3)

500*500+(5+3)500+(5*3)

250000+4000+15

254015

Answer 2

Answer:

Hence we get the value of  505×503​=$254015$

Step-by-step explanation:

In accordance with the information provided in the question,

We have find the value of the supplied expression in the above question.

Given the data in question 505×503

We can write  the given expression

$(500+5)(500+3)$

Hence we can simplify  we get,

$(a+b)\times(c+d)$

So, for finding the value of the expression we will first multiply "a" with "c" and a with  "d" and then multiply "b" with "c" and b with "d", and then add the resultant value.

$ac+ad+bc+bd$

So, applying the above identities we will get it as,

$(500\times500)+(500\times3)+(5\times500)+(5\times3)\\250000+1500+2500+15\\251500+2500+15\\254000+15\\254015$