Answer:
6x= -6
x= -1
Step-by-step explanation:
Common equation,6 instead of 0 equals to negative 6, then divide it by 6 equals to negative 1
Answer:
pretty sure its the first one
Step-by-step explanation:
Hey there I need to see the figure to help. no I didn't post to get points I want to help I will no matter what get you the answer but I need the figure
Using the formula a² + b² = c² but reversing it to c² - b² = x² where x replaces the a for comprehension reasons
so this is the formula
c² - b² = x²
insert the numbers on the triangle in the picture
21² - 8² = 377
since 377 is squared and not the side length, we need to square root it to find x
√377 = 19.4~
Answer: x = 19.4
Hello, we need to see it as a difference of two squares as we know that for all a and b real numbers

So, here

Voila !
Thank you