15x plus 7
This is because you just simplify the like terms
Answer:
![{9}^{15}](https://tex.z-dn.net/?f=%20%7B9%7D%5E%7B15%7D%20)
Step-by-step explanation:
![( {9}^{3} ) \times ( {9}^{12} ) = 9 {}^{3 + 12} = {9}^{15} \\](https://tex.z-dn.net/?f=%28%20%7B9%7D%5E%7B3%7D%20%29%20%5Ctimes%20%28%20%7B9%7D%5E%7B12%7D%20%29%20%3D%209%20%7B%7D%5E%7B3%20%2B%2012%7D%20%20%3D%20%20%7B9%7D%5E%7B15%7D%20%20%5C%5C%20)
The answer is D.64
Explain i have the test myself
Answer:
x=4
Step-by-step explanation:
<h2>Mark as brainliest if it helps . </h2>
Answer:
x = - 10 ± ![\sqrt{y}](https://tex.z-dn.net/?f=%5Csqrt%7By%7D)
Step-by-step explanation:
y = (x + 10)² , or
(x + 10)² = y ( take square root of both sides )
x + 10 = ±
( subtract 10 from both sides )
x = - 10 ± ![\sqrt{y}](https://tex.z-dn.net/?f=%5Csqrt%7By%7D)