Answer:
x = 9 or x = 0
Step-by-step explanation:
Solve for x over the real numbers:
x^2 - 4 x - 5 x = 0
x^2 - 4 x - 5 x = x^2 - 9 x:
x^2 - 9 x = 0
Factor x from the left hand side:
x (x - 9) = 0
Split into two equations:
x - 9 = 0 or x = 0
Add 9 to both sides:
Answer: x = 9 or x = 0
Answer:
x=24
Step-by-step explanation:
Use Pythagorean Theorem to solve for x.
7^2+x^2=25^2
49+x^2=625
-49 - 49
x^2=576
sqrt sqrt
x=24
