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Show all work to solve 3x^2 + 5x - 2 = 0​

User Hawk
by
5.0k points

2 Answers

4 votes

The answer for this problem is x=1/3 or x=-2

Start off with the same equation.

3x^2+5x−2=0

Factor left side of equation.

(3x−1)(x+2)=0

Set factors equal to 0.

3x−1=0 or x+2=0

The answer is

x=1/3 or x=-2

User Zoneur
by
4.5k points
6 votes

Answer:

The solution set is {-2, 1/3}.

Explanation:

3x^2 + 5x - 2 = 0​

This will factor:

3x^2 + 6x - x - 2 = 0

3x(x + 2) - 1(x + 2) = 0

(3x - 1)(x + 2) = 0

3x - 1 =0 , x + 2 = 0, so:

x = -2, 1/3.

User Wolendranh
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5.0k points