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1 vote
Solve for x
-1(-3x^2+2x+8)=1(0)

2 Answers

7 votes
Exact form: X = -4/3, 2
Decimal form: x= -1.3 repeat, 2
User Grovskiy
by
4.1k points
6 votes

Answer:

x= -4/3 or x = 2

Explanation:

If this is the correct form of the question, let's get done with it easily.

We'll pay keen attention to their signs.

-1 (-3x² + 2x + 8 ) = 1(0)

First, we open the bracket using (-1) to Multiply through.

3x² - 2x - 8 = 0

Sum of roots of the equation = -2

Products of the equation = -24

The roots of the equation would be:

(-6x , 4x). The EQUATION becomes:

3x² - 2x - 8 = 0

3x² - 6x + 4x - 8 = 0

3x ( x - 2) + 4( x - 2) = 0

(3x + 4) (x - 2) = 0

3x + 4 = 0. OR x - 2 = 0

3x = - 4. x = 2

x = -4/3

Therefore, x = -4/3 or 2

User Ka Mok
by
4.4k points