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samueltaye
11.02.2020 •
Mathematics
Solve the equation.
8-2=2-5
Solved
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Ответ:
g = 0 or g = -1/2
Step-by-step explanation:
Solve for g:
8 g^3 - 2 g^2 = 2 g^3 - 5 g^2
Subtract 2 g^3 - 5 g^2 from both sides:
6 g^3 + 3 g^2 = 0
Factor g^2 and constant terms from the left hand side:
3 g^2 (2 g + 1) = 0
Divide both sides by 3:
g^2 (2 g + 1) = 0
Split into two equations:
g^2 = 0 or 2 g + 1 = 0
Take the square root of both sides:
g = 0 or 2 g + 1 = 0
Subtract 1 from both sides:
g = 0 or 2 g = -1
Divide both sides by 2:
g = 0 or g = -1/2
Ответ:
Step-by-step explanation:
Use the identity : a² - b² = (a + b )(a - b)
25 and 36 should be written in the form raised to power 2
25 = 5 * 5 = 5²
36 = 6 * 6 = 6²