Question

find 49×49 using identity​

Answer 1

Answer:

2401

Step-by-step explanation:

(50-1)(50-1)

${(50 - 1)}^{2}$

Using the identity

${(a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab$

$= {(50)}^{2} + {1}^{2} - 2(50)(1)$

$= 2401$

Answer 2

Answer:

2401

Step-by-step explanation:

can it be also done like

49-0 = 49square +2*49*0+0square

where we get 49 square