(a+2)2 - @(4-7a)
To simplify the expression \((a+2)^2 - @(4-7a)\), we first need to clarify the meaning of the symbol "@". If we treat it as a multiplication operator, then we can simplify the expression given that we have defined the "@" operator.
Let's break it down, assuming "@" is a multiplication symbol:
Expand \((a+2)^2\): \[ (a+2)^2 = a^2 + 4a + 4 \]
Distribute "@" across the second term \(4 - 7a\): \[ @(4-7a) = 4@ - 7a@ \]
At this point, without defining the "@" operator, we can't move forward directly.
If "@" represents a certain operation and you want to preserve that specific operation or if it is defined as a constant, then please provide the definition so we can continue.
However, if by chance the "@" was a typographical error and you meant to present multiplication or subtraction, please clarify so that I can assist you accurately.
If "@" does denote multiplication or something else entirely, please provide that context!
