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3 years ago

Solve the equation using the quadratic formula.

Mathematics

2 answers:

vitfil [10]3 years ago

7 0

Answer:

$x=\frac{-3\pm\sqrt{17}}{2}$

Step-by-step explanation:

We have been given an equation $x^2+3x-2=0$ . We are asked to solve the given equation.

To solve our given equation, we will use quadratic formula.

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitute the values:

$x=\frac{-3\pm\sqrt{3^2-4(1)(-2)}}{2(1)}$

$x=\frac{-3\pm\sqrt{9+8}}{2}$

$x=\frac{-3\pm\sqrt{17}}{2}$

Therefore, option D is the correct choice.

gayaneshka [121]3 years ago

5 0

The last one is the answer

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Answer:

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Step-by-step explanation:

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3 years ago

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ratelena [41]

Answer:

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Step-by-step explanation:

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3 years ago

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Wht is 84 is 74% of what number

Elina [12.6K]

'is' in mathematics means equal
'of' in mathematics means multiplication

percent means over 100

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84 = 74/100 * x

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85 * 50/37 = x

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3 years ago

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Answer:

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charle [14.2K]

Hi there!

$\large\boxed{5}$

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3 years ago