find the products using appropriate identities : a . (47 )power 2 .
Answers
Answered by
0
Answer:
2209
Step-by-step explanation:
(50-3)^2
(a-b)^2=a^2+b^2-2ab
50^2+3^2-2(50)(3)
2500+9-300
2209
Answered by
3
Answer:
47^2
=(40+7)^2 ( (a+b)^2=a^2+b^2+2ab)
=40^+7^2+2×40×7
=2209
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