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erma4kov [3.2K]
3 years ago
9

Solve for x. Write the smaller solution first, and the larger solution second. 2x^2-5=13

Mathematics
2 answers:
lianna [129]3 years ago
8 0

Answer:

x= -3

Step-by-step explanation:

mark branliest pls

Standard form:

2x2 − 18 = 0

Factorization:

2(x + 3)(x − 3) = 0

Solutions based on factorization:

x + 3 = 0   ⇒   x1 = −3

x − 3 = 0   ⇒   x2 = 3

Extrema:

Min = (0, −18)

Savatey [412]3 years ago
4 0

Answer:

x = ± 3

Step-by-step explanation:

Given

2x² - 5 = 13 ( add 5 to both sides )

2x² = 18 ( divide both sides by 2 )

x² = 9 ( take the square root of both sides )

x = ± \sqrt{9} = ± 3

smaller solution is x = - 3

larger solution is x = 3

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