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s344n2d4d5 [400]
3 years ago
9

Select the two values of x that are roots of this equation. 3x-5=2x^2​

Mathematics
2 answers:
Korolek [52]3 years ago
7 0

Solution:

3x - 5 = -2x²

2x² + 3x - 5 = 0

<em>By splitting the middle term,</em>

2x² - 2x + 5x - 5 = 0

2x (x - 1) + 5 (x - 1) = 0

(2x + 5)(x - 1) = 0

So, 2x + 5 = 0

<em>x = -5/2</em>

(OR)

x - 1 = 0

<em>x = 1</em>

The roots of <em>2x² + 3x - 5 = 0</em> are: A. x = 1 & B. x = -5/2

wlad13 [49]3 years ago
4 0

Step-by-step explanation:

3x - 5 =  -  {2x}^{2}

➡

{2x}^{2}  + 3x - 5 = 0

(2x+5)(x-1) = 0

one of these multiple should be 0 so the equation is equal to 0

therefore if 2x + 5 = 0 then

x = -5/2

and if x+1 = 0 then

x = 1

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