Question

Without squaring, find the value of:- 27^2- 26^2.​

Answer 1

Answer:

53

Step-by-step explanation:

${x}^{2} - {y}^{2} = (x + y)(x - y) \\ \\ {27}^{2} - {26}^{2} = (27 + 26)(27 - 26) \\ \\ (53)(1) = 53$

Answer 2

Step-by-step explanation:

53

Step-by-step explanation:

27^2=27*27

26^2=26*26

Now,

(27*27)-(26*26)

=729-676

=53

Hope it helps!