Answer:
4
Step-by-step explanation:
4(4-4)+4=4
insert 2 in a and-2 in b
Answer:
4
Step-by-step explanation:
4(2^2 + (2 * -2)) - (2 * -2)
2^2 = 4
4(4 + (2 * -2)) - (2 * -2)
2 * -2 = -4
4(4 + -4) - -4
- -4 = + 4
+-4 = -4
4(4 -4) + 4
4 - 4 = 0
4(0) + 4
4 * 0 = 0
0 + 4
0 + 4 = 4
4