Question

using algebraic identities do this sum 97² do it as fast as you can please ​

Answer 1

Answer:

97^2=9409

Step-by-step explanation:

97^2

=(100-3) ^2

=(100) ^2-(2*100*3)+(3) ^2

=10000-600+9

=10009-600

=9409

Answer 2

$= (90 + 7) ^{2}$

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

$= (90) ^{2} + 2 \times 90 \times 7 + (7) ^{2}$

$= 8100 + 1260 + 49$

$= 9400$