Please it's a test!!!​

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

23

step-by-step explanation:

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72