is (-23) × [(-21 +(-9) =(-23) ×(-21) +(-23) ×(-9)
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(-23) × [(-21 +(-9) =(-23) ×(-21) +(-23) ×(-9)
= It is distributive property..
a×(b+c) = (a×b )+ (a×c)
a= -23. b= -21. c= -9
(-23) × [(-21 +(-9)
LHS
(-23)× -30
= 690
Now RHS
(-23) ×(-21) +(-23) ×(-9)
= 483+ 207
= 690ans
Hence verified that LHS=RHS
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