We are given that the value of a² + 9² is 786. We can rewrite this equation as:
a² + 81 = 786
Subtracting 81 from both sides of the equation, we have:
a² = 786 - 81
a² = 705
Now, we need to find the value of "a - a". Since "a - a" is the difference between the same value, it will always be zero, regardless of the value of "a". So, the value of "a - a" is 0.
Answers & Comments
Answer:
a-a=0
Step-by-step explanation:
Let's solve the equation step by step.
We are given that the value of a² + 9² is 786. We can rewrite this equation as:
a² + 81 = 786
Subtracting 81 from both sides of the equation, we have:
a² = 786 - 81
a² = 705
Now, we need to find the value of "a - a". Since "a - a" is the difference between the same value, it will always be zero, regardless of the value of "a". So, the value of "a - a" is 0.
Therefore, the value of "a - a" is 0.