Solve using identity 198 × 208
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2
Answer:
41,184
Step-by-step explanation:
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200 - 2 × 200 + 8
use identity =
x^2 + ( a - b ) x - ab
so
(200)^2 + ((-2) - 8) 200 - (-2) (8)
40,000 + (-10) 200 - (-16)
40,000 + (-10) 216
40,000 + (-2160)
ANSWER = 37,840
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