139k views
20 votes
(2x + 3)(3x + 1) = 11x + 30

Solve for x

User Champer Wu
by
6.8k points

2 Answers

8 votes

Answer:


x = (3√(2))/(2)~~~or~~~x = -(3√(2))/(2)

Explanation:

(2x + 3)(3x + 1) = 11x + 30

6x^2 + 2x + 9x + 3 = 11x + 30

6x^2 + 11x + 3 = 11x + 30

Subtract 11x from both sides. Subtract 3 from both sides.

6x^2 = 27

Divide both sides by 6

x^2 = 9/2


x = \sqrt{(9)/(2)}~~~or~~~x = -\sqrt{(9)/(2)}


x = (3)/(√(2))~~~or~~~x = -(3)/(√(2))


x = (3√(2))/(2)~~~or~~~x = -(3√(2))/(2)

User Jordan Papaleo
by
6.8k points
7 votes

Answer:

Explanation:

First, open the parentheses!

6x^2 + 2x + 9x + 3 = 11x + 30

6x^2 + 11x + 3 = 11x + 30

Now solve this equation:

6x^2 + 3 = 30

x^2 = 2

x = √2

Sorry...I'm not sure if this is correct but hope it helps!

User Tiana
by
7.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.