Answer:
-4 and 9/10
Step-by-step explanation:
Since everything in parentheses is simplified, you just subtract like terms.
(-1/2)-(1/5)
(5/10)-(2/10)
(-7/10)
9^2 - 9^2 = 0
(-4/5)+(1/10) (It's a plus sign because the (1/10) was negative and since you are subtracting (two negatives make a positive) it turns positive.
(-8/10) + (1/10)
(-7/10)
(-7/10)^2
(-49/10)
-4 9/10
