Question

Evaluate ne following by
using identities (97) square ​

Answer 1

Question:

Evaluate following by using identities (97) square

Solution:

• This (97)² can be written as (90+7)² to apply suitable identity.
• Identity that can be used=(a+b)²=a²+2ab+b².

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

$= 8100 + 1260 + 49$

$= 9409$

$\sf\red{hope\:it\:helps\:you}$