Answer:
√113
Step-by-step explanation:
8*8 + 7*7 = c^2
64 + 49 = c^2
√113 =C
Answer:
X=-15
Step-by-step explanation:
Do simple math
Answer:
Yes this represents additive inverse,
Step-by-step explanation:
Since you are subtracting the same number 4 to get to zero.
10(x^2) = 90x where x > 0 or x < 0
Factor by 10x on each sides
10x(x) = 10x(9)
x = 9