Are the problems separated?
Answer:
If x^2 = 1, then x = 1 is NOT true because x can also be -1.
Is this 9x+4=5+5x or is it 9x•4=5•5x?
Answer:
Step-by-step Yes it is, assuming we decide to use the Pythagorean Theorem to find the hypotenuse (10) it'll be possible considering the formula is c²=√a²+b²
(c being the longest side of the triangle)
a= 6 and b= 8
c² =√6² + 8²
c² = √100 square root of 100 equals 10
c= 10p explanation: