Math, asked by RANITBISWAS1, 4 months ago

Using the formula of (a + b)²
, find (i) (2x + 3y)
²

(ii) (103)²​

Answers

Answered by dixitsarita984
1

Answer:

(i). ( a+b)^ is a^+b^+2ab

(2x + 3y)^ is (2x)^ + (3y)^ + 2 × 2x × 3y

so, 4x^ + 9y^ + 12xy

Answer is 4x^ + 9y^ + 12xy.

Answer :

(ii). (103)^

(100+3)^ = (100)^ + (3)^ + 2 × 100 × 3 = 10000 + 9 + 600

So, 10000 + 9 + 600 = 10609

Answer is 10609.

Hope this helps you.

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