The answer to the first part is 26 i think
Bc 6-10 theres 10 and 10-15 theres 16
Answer:
-9
Step-by-step explanation:
Answer:
X=9 or x=-9
Step-by-step explanation:
X^2=81
Can be written as
x^2-81=0
Factorize by the property:
a^2-b^2=(a-b)(a+b)
So the expression becomes:
(x-9)(x+9)=0
Therefore, either x-9=0or x+9=0
Then the solutions are x=9 or x=-9
The second option ! 2.54 - 2.3 = 0.24
