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Find the roots.
3x2 - 5x+ 2 =0

2 Answers

0 votes

Answer:

1/3 & -2

Step-by-step explanation: Currently taking the Algebra 2 Interim Checkpoint

User Sean Burlington
by
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4 votes

Answer:

see explanation

Explanation:

Given

3x² - 5x + 2 = 0

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term

product = 3 × 2 = 6 and sum = - 5

The factors are - 3 and - 2

Use these factors to split the x- term

3x² - 3x - 2x + 2 = 0 ( factor the first/second and third/fourth terms )

3x(x - 1) - 2(x - 1) = 0 ← factor out (x - 1) from each term

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

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

3x - 2 = 0 ⇒ 3x = 2 ⇒ x =
(2)/(3)

Roots are x = 1, x =
(2)/(3)

User Korunos
by
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