Determine the factors of 3x2 + 10x − 8. (which is the right answer? )

a. (3x − 8)(x + 1)
b. (3x − 1)(x + 8)
c. (3x − 4)(x + 2)
d. (3x − 2)(x + 4)

ANSWER

EXPLANATION

The given quadratic trinomial is

Comparing to the general quadratic trinomial:

We have a=1, b=10 and c=-8

The factors of -24 that adds up to 10 are -2 and 12.

We split the middle term to obtain;

Factor;

Factor further;

The last option is correct.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

if x = 1, then the answer is 3.5