Question

6. Without squaring, find the value of:
(1) 27(2) - 26​

Answer 1

Answer:

26²+27

Step-by-step explanation:

27²-26=(26+1)²-26

= 26² +2(26×1)+1²-26

= 26²+ 2×26-26+1

= 26²+ 26(2-1) +1

=26²+26+1

= 26²+27