Question

Example 9: If a=2, b = -1, c= -2, find the value of
(a) 4a-2b + 4C
(b) a2-b2​

Answer 1

Answer:

a)( 4×2)-2×(-1)+4×(-2)

8+2-8

=10-8

=2

b) (2×2)-(-1)×(-1)

4-1

3

Answer 2

Answer:

a) 4×2-2×-1+4×-2

=8+2-8

=10-8

= 2

Step-by-step explanation:

b) 2²-(-1²)

=4 +1

5