Find the value of x to 2dp in the equation 2x² + 5x = 9

David Burrows asked Dec 1, 2023

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David Burrows asked Dec 1, 2023

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18 votes

Answer:

where x1=-3.71 and x2=1.21

Explanation:

first= 2x+5x-9=0, a=2,b=5,c=-9, x=

$\sqrt{ {5 }^(2) } - 4 * 2( - 9) \: over4$

second x=

$\sqrt[ - 5 + ]{25 + 72} over4$

$\sqrt[ - 5 +4 ]{97}$

$\sqrt[ - 5 - 4]{97}$

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