Question

53 square - 47 square evaluate using identity ​

Answer 1

Application of Algebraic  Identity

Answer:

53² - 47² = 600.

Explanation:

need to evaluate following expression

53² - 47²

we will be using following algebraic identity to evaluate 53² - 47² .

a² - b² = ( a - b ) ( a + b )

On Applying above algebraic identity , we get

53² - 47² = ( 53 - 47 ) ( 53 + 47 )

=> 53² - 47² = 6 × 100 = 600

Here we have seen that how application of algebraic identity can simplify calculation.

Hence 53² - 47² = 600.

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Answer 2

Step-by-step explanation:

(i) 532 – 472

= (50 + 3) (50 – 3)

= (50)2 – (3)2

= 2500 – 9

= 2491

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