Question

please answer me this question ​

Answer 1

Answer:

6724

Step-by-step explanation:

82 can be written as 80+2

${(82)}^{2} = {(80 + 2)}^{2}$

${(80 + 2)}^{2} = {(a + b)}^{2}$

=a² + b² + 2ab

= (80)² + (2)² + 2×80×2

= 6400 + 4 + 320

= 6724 Ans

Answer 2

$\large{\underbrace{\sf{\orange{required \: solution:}}}}$

☯️we need to find the square of the number 82 using the property (a + b)² = a² + b² + 2ab.

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According to the question,

82 = (80 + 2)²

In the formula, (a + b)² = a² + b² + 2ab.

let us assume A as 80 , B as 2

now , let's find the solution.

(80 + 2)² = 80² + 2² + 2 × 80 × 2

(80 + 2)² = 6400 + 4 + 320

(80 + 2)² = 6724

hence, 6724 is the square of the number 82 using the property (a + b)² = a² + b² + 2ab.

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