Find square by expansion method: 34 and 42
Pls help for my finals
Answers
Answered by
7
Answer:
Step-by-step explanation:
34²
=(30+4)²
=900 +240 +16 [(a+b)²=a² + b² +2ab]
=1156
42²
(40+2)²
=1600 + 160 +4 [(a+b)²=a² + b² +2ab]
=1764
AshleyMukadam:
Thank you
make me brainliest
Answered by
1
Answer:
Step-by-step explanation:
34²
=900 +240 +16
=1156
42²
=1600 + 160 +4
=1764
Thanks
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