Question

12^2-1 find the value
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Answer 1

Answer:

143

Step-by-step explanation:

12^2-1

= 144- 1

= 143

Answer 2

Value of $12^2-1 = 143$

GIVEN:- $12^2-1$

TO FIND:- Value

SOLUTION:-

As we know

$a²-b²=(a+b)(a-b)$

1 is a square of 1

12 is a square of 12²

Similarly, we can write

${12}^{2} - {1}^{2}$

By applying the formula where a is 12 and b is 1

$= (12 + 1) \times (12 - 1) \\ = 13 \times 11 \\ = 143$

Hence, the value of $12^2-1 = 143$

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