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OKits just like that the minus sign with the brackets...
2 by 5 [12p - (5 + 2p)]. ?
... will be multiplied with the + sign and we get the - sign. ok? we can say we have "-1" instead of only "- sign" because if u multiply anything with 1 the value doesnt change. so, we wwill multiply -1 with +5 ...
[2 by 5 [12p - (+5 + 2p)]. ?
... and we get -5, then we will multiply -1 with +2p and we get "-2p"
is it ok?