Answer:
Step-by-step explanation:
The expression simplifies as follows:
aΔb = (a² -b)/(b -a²) = -(b -a²)/(b -a²) = -1 . . . . . for b≠a²
That is, for any values of 'a' and 'b', the expression evaluates to -1.
2 Δ 1/2 = -1
5 Δ -3 = -1
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Additional comment
The purpose of simplifying the expression is to avoid having to do unnecessary arithmetic. If you actually want to see the arithmetic, it looks like this:
2 Δ 1/2 = (2² -(1/2))/(1/2 -2²) = (7/2)/(-7/2) = -1
5 Δ -3 = (5² -(-3))/(-3 -5²) = 28/-28 = -1
