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Nataly_w [17]
3 years ago
9

Let a Δ b = (a+b)2+5. what is 1 Δ - 4?

Mathematics
1 answer:
Arturiano [62]3 years ago
5 0

It looks like ∆ is defined as

<em>a</em> ∆ <em>b</em> = (<em>a</em> + <em>b</em>)² + 5

If that's the case, then

1 ∆ (-4) = (1 + (-4))² + 5 = (-3)² + 5 = 9 + 5 = 14

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