Use substitution to write an equivalent quadratic equation. (3x + 2)2 + 7 (3x + 2) – 8 = 0 - u2 + 74 - 8 = 0, where u = (3x + 2)2 u2 + 7u - 8 = 0, where u = 3x + 2 u2 + 70 - 8 = 0, where u = 7(3x + 2) lu² +4-8=0 what’s the answer?

For this case we can make a change of variable, to obtain a quadratic equation of the form:

Making the change:

Substituting the change we have:

Thus, the correct option is:where

Option B

second option:

Step-by-step explanation:

We have the equation given:

We can replace the variable in the quardatic equation.

So,

Putting u in place of 3x+2 will give us:

So the answer is:

So, the second option is correct ..

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

0

step-by-step explanation:

you can not divide by 0 so 4 ÷ 0 would be 0

0 × 9999 =0

mark brainliest   : )