Question

If a=2, b= -1 and c=1, then find the value of:
A- a+b-c²
B- a³-b+c
C- a-b-c

Answer 1

Explanation:

A. 2 + -1 - 1^2 = 1 - 1 = 0

B. 2^3 - -1 + 1 = 8 + 1 + 1 = 10.

C. 2 - -1 - 1 = 2 + 1 - 1 = 2.

Answer 2

A- a+b-c²

=2+(-1-1)^2

=1-1

=0

B- a³-b+c

2^3-(-1+1)

=8+1+1

= 10

C- a-b-c

2-(-1-1)

=2+1-1

=2