Select the two values of x that are roots of this equation 3x^2 + 1 =5x

x = 1.434 and x=0.232

Step-by-step explanation:

To find the root of the equation stated above we need to:

(1) Write the polynomial equation with zero on the right hand side:

⇒

(2) Divide the whole equation by 3

⇒

(3) Use the quadratic formula to solve the quadratic equation:

The quadratic formula states that the two solutions for a quadratic equation is given by:

(1)

In this case, a = 1, b =

Substituiting a, b and c in equation (1) We get:

(1)

The two solutions are:

x = 1.434 and x=0.232

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)