shanua
24.04.2020 •
Mathematics
Solve x2 – 64 = 0.
1. Isolate x2: x2 = 64
2. Apply the square root property of equality: Vx2 = /64
3. Isolate the variable: x= x=
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Ответ:
-8, 8
Step-by-step explanation:
x² - 64 = 0
x² = 64
x = +/- sqrt(64)
x = +/- 8
Ответ:
x = ±8
Step-by-step explanation:
x^2 – 64 = 0
Add 64 to each side
x^2 – 64 +64= +64
x^2 = 64
Take the square root of each side
sqrt(x^2) = ±sqrt(64)
x = ±8
Ответ: