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43 votes
43 votes
I need help knowing how to solve this and also what does it mean when it has the number at the top

I need help knowing how to solve this and also what does it mean when it has the number-example-1
User TripRev
by
2.8k points

1 Answer

13 votes
13 votes

EXPLANATION

Considering the expression:

a-bc², when a=3; b=2 ; c=-1

3-2x(-1)² [Solving the power]

=3- 2x1 [Simplifying]

= 3 - 2 = 1

The answer is 1.

Then, considering the expression c²+a²b and substituting terms:

(-1)² + (3)²x2 [Solving the powers]

=1 + 9x2 [Multiplying numbers]

= 1 + 18 [Adding numbers]

= 19

The answer is 19

User Ilanco
by
3.1k points