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 ..

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

answer: this is not a question

step-by-step explanation: this is a answer