The value of the expression 169 - a² + 24b - c is 568.
From the information, the expression that's given is 169 - a² + 24b - c.
In this case, the values of the variables have been given and you just need to slot them into the expression. This will be:
= 169 - a² + 24b - c.
= 169 - 5² + (24 × 18) - 8
= 169 - 25 + 432 - 8
= 568
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