How do you solve this Algebra problem?
-1/4x^2 + 9 = 0
-1/4x^2 + 9 = 0
nozar nazari
Favorite Answer
1/4x^2=9
x^2=36
x=-6 & x=6
God bless you.
Maverick
Depends where your brackets should be. I'll give all the options.
(-1 / 4x²) + 9 = 0
9 = 1/4x²
4x² = 1/9
x² = 1/(4*9)
x² = 1/36
x = â(1/36)
x = ±1/6
-1 / (4x² + 9) = 0
cannot be true
-(1 / 4)x² + 9 = 0
-(1 / 4)x² = -9
x² = 9*4
x = â36
x = ±6
LookingForAnswers
You have shown no parentheses, so I am assuming it is (1/4) x^2 instead of 1 / (4x^2)
Step 1) - 1/4 x^2 + 9 = 0
Step 2) - 1/4 x^2 = -9
Step 3) 1/4 x^2 = 9
Step 4) x^2 = 36 (Cross multiplication 9 X 4/1))
Answer: x = 6
grunfeld
x = - 6, 6