46× ( 58)+( 58)× ( 56) → Take ( 58) common. We get #160; =( 58)× (46+( 56)) =( 58)× ( 10) =580 ...

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Expansion of (a ± b ± c)²

46× -58+-58× ...

Question

$46 \times (- 58) + (- 58) \times (- 56)$ .

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Solution

$46 \times (- 58) + (- 58) \times (- 56)$
$\to$ Take $(- 58)$ common. We get
$= (- 58) \times (46 + (- 56))$
$= (- 58) \times (- 10)$
$= 580$

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