Answer:
[tex]x = - 6 \: or \: x = 6[/tex]
Step-by-step explanation:
[tex] {x}^{2} - 36 = 0[/tex]
[tex] {x}^{2} = 36[/tex]
Take the square roots of both sides.
[tex]x = \frac{ + }{} 6[/tex]
[tex]x \: = - 6 \: or \: x \: = 6[/tex]
Answer:
hello
Step-by-step explanation:
a²-b²= (a-b)(a+b)
a²=x² and b²=36
a=x and b=6
x²-36=(x-6)(x+6)
x-6=0
x=6
x+6=0
x=-6
x²-36=0 if x=6 or x=-6
