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Using the identity (a + b) (a - b) = a - b², evaluate 49 × 51.
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Using the identity (a + b) (a - b) = a - b², evaluate 49 × 51.
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Nov 9, 2022
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Using the identity (a + b) (a - b) = a - b², evaluate 49 × 51.
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Rui Barradas
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49 × 51
Using
Identity
(a + b) (a - b) = a - b²
Solution
⇛(50 + 1) (50 - 1)
⇛(50)² - (1)²
⇛2500 - 1
⇛2499
Jaswrks
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Nov 11, 2022
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Jaswrks
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Vfn
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Nov 14, 2022
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