Evaluate the following using suitable identities: 1) (2a-3)²
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Answered by
1
to find :
(2a-3)² using suitable identity
Identity to be used
- (a+b)² = a²+b²+2ab
Solution :
(2a+3)²
= (2a)²+3²+2(2a×3)
= 4a²+9+12a
Answered by
1
Answer:
(2a-3)²= x²-2xy+y²
" =2a²-2×2a×3²+3²
=4a-24a-6
6=20a
=20a/6
Sorry if this answer is mistake because I don't know how to do, but I tried, so don't mine
Thank you
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