Question

3x²- 15 +8x= 0ПЖ ХЕЛП​

Answer 1

Ответ:

Объяснение:стчтут

Answer 2

To solve the quadratic equation 3x² - 15 + 8x = 0, we can use the quadratic formula. The quadratic formula states that for an equation of the form ax² + bx + c = 0, the solutions for x can be found using the formula:

x = (-b ± √(b² - 4ac)) / (2a)

Comparing the given equation 3x² - 15 + 8x = 0 with the standard form ax² + bx + c = 0, we have: a = 3, b = 8, c = -15

Substituting these values into the quadratic formula, we get:

x = (-(8) ± √((8)² - 4(3)(-15))) / (2(3))

Simplifying further:

x = (-8 ± √(64 + 180)) / 6

x = (-8 ± √(244)) / 6

Now, let's calculate the square root of 244:

√(244) ≈ 15.6205

Substituting this back into the equation, we have:

x = (-8 ± 15.6205) / 6

This gives us two possible solutions:

x₁ = (-8 + 15.6205) / 6 ≈ 1.4367

x₂ = (-8 - 15.6205) / 6 ≈ -3.7694

Therefore, the solutions to the quadratic equation 3x² - 15 + 8x = 0 are approximately x₁ ≈ 1.4367 and x₂ ≈ -3.7694.