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3 years ago

7

Use factoring to solve the quadratic equation. 2x^2=5X+3

1 answer:

prohojiy [21]3 years ago

4 0

Move everything to one side
Equation
2x^2 - 5x -3 = 0
Sq rt means square root or radical sign
Quadratic equation-> x = - (b) +/- Sq rt b^2 -4ac
2a
- (-5) +/- Sq rt (-5)^2 - 4(2)(-3)
2 (2)
5 +/- Sq rt 25 + 24
4
Sq rt 29 = 5.38
5 + Sq rt 29 divides over 4 and 5 - Sq rt 29 divides over 4.

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Answer:

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Step-by-step explanation:

Let

y -----> elevation of the "ojos del salado" volcano

x -----> elevation of the "khangar" volcano

we know that

The elevation of the "ojos del salado" volcano is about 3 times as great as the khangar volcano

so

$y=3x$ ----> equation A

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substitute the value of x in the equation A

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therefore

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