3 years ago

If the value of b is 7, then what is the value of the expression -3b2 + 25 = ?

Mathematics

1 answer:

lara [203]3 years ago

8 0

substitute b = 7 into the expression and evaluate

- 3 × (7)² + 25 = (- 3 × 49 ) + 25 = - 147 + 25 = - 122 → B

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