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Mathematics
Lane Fuentes
11 September, 19:28
Solve: 4x^-2 - 3x^-1 - 1 = 0
+3
Answers (
1
)
Aubrie Keith
11 September, 23:05
0
X = 1 or X = - 4
Step-by-step explanation:
Let's solve your equation step-by-step.
4x-2-3x-1-1=0
-x2-3x+4
x2
=0
Step 1: Multiply both sides by x^2.
-x2-3x+4=0
(-x+1) (x+4) = 0 (Factor left side of equation)
-x+1=0 or x+4=0 (Set factors equal to 0)
x=1 or x=-4
Check answers. (Plug them in to make sure they work.)
x=1 (Works in original equation)
x=-4 (Works in original equation)
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