Question

What is the value of 3x 2 squared + 5x when x=3

Cassie's book has 325 pages. She read 155 pages yesterday and the rest today. Write an equation to express how many pages she read today.




SHOW YOUR WORK

Answer 1

155 + p = 325

`3x=(3)/(2)`

Explanation:

`3x-2+5x=2`

Before we find the value of

3 x , let's first find the value of x

To do so, first, combine

3 x + 5 x : 8 x − 2 2

Add

2

to both sides of the equation:

8 x − 2 + 2 = 2 + 2

8x=4

Now divide both sides by 8 :

`(8x)/(8)=(4)/(8)`

`x=(1)/(2)`

Since we want 3x, multiply that by 3:

`(1)/(2)*3=(3)/(2)`

hope it helps

Answer 2

3•2=6. When you square 6, you get 36. Add 5x to that. 5x=15. 36+15=51

Cassie read 155 pages one day, and we need to find the unknown value of “x”. All you have to do is add 155+x=325.