I'm assuming that x 8 = x⁸ and 3x 5 = 3x⁵.
So let's solve.
x⁸ + 3x⁵ = x⁵(____)
x⁸ + 3x⁵ = x⁵(x³ __)
x⁸ + 3x⁵ = x⁵(x³ + 3)
Therefore the missing expression is (x³ + 3)
Sup fam
Answer:
140 miles
Step-by-step explanation:
4 per day for 5 days a week
= 4x5=20 miles a week
For 7 weeks= 20x7= 140 miles
Hello!

Explanation:
↓↓↓↓↓↓↓↓↓↓↓↓↓
First you had to subtract by 2 from both sides of the equation.

Simplify

Then you divide by 3 from both sides of the equation.

Simplify it should be the correct answer.

Answer⇒⇒⇒⇒⇒x=88/3
Hope this helps!
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Have a great day!
-Charlie