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Phoenix [80]
3 years ago
12

Given that a = -2, b = 5 and c = -5 work out 2b - 3ac

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

- 20

Step-by-step explanation:

Given the expression

2b - 3ac ← substitute given values for a, b and c

= 2(5) - (3 × - 2 × - 5)

= 10 - 30

= - 20

Scilla [17]3 years ago
5 0

Answer:

-20 is the required answer

Step-by-step explanation:

2b-3ac

=2×5-3×-2×-5

=10-30

=-20

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