Say x is 5
so 5 + 5 = 10
where as 5 times 5 = 25
The difference is "x + x" is a addition and "xx" (x times x) is a multiplication.
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x3 = x times x times x 3x = x plus x plus x
(x - 1)(x + 1)(x + 1)
x+2=3/(x+2) (x+2)(x+2)=3 xx+4x+4=3 xx+4x+1=0 USE QUADRATIC x+2=3/x+2 x=3/x xx=3 x=sqrt(3),-sqrt(3)
x=5 so it's 55+55= 110
4x plus 7 plus 3x equals 19 plus xx = 2