10(x - 3)2 = 10(x2 - 6x + 9) = 10x2 - 60x + 90
[ 10(x - 3) ]2 = 100(x2 - 6x + 9) = 100x2 - 600x + 900
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My answer would be 10(x - 3)^2 where the "^2" means that 2 is an exponent printed as a superscript, above the line. The English phrase is ambiguous unless you agree to some convention about the way that "square" is applied you can not tell what is to be squared. Is it the 3 , is the quantity (x-8) or the whole thing, 10(x-8) to be squared. In the first case , the answer would be 10(x-3^2) The second case is my answer above The third case would be (10(x-3))^2 .
If x squared -10 = 0 then x = the square root of 10
2
It is: (B -10)(B +10) when factored
1010 - 102 = 910